Terzić, Anja

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orcid::0000-0002-4762-7404
  • Terzić, Anja (24)
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Author's Bibliography

Cavitation Properties of Rendering Mortars with Micro Silica Addition

Terzić, Anja; Dojčinović, Marina; Milicić, Ljiljana; Stojanović, Jovica; Radojević, Zagorka

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2021)

TY  - JOUR
AU  - Terzić, Anja
AU  - Dojčinović, Marina
AU  - Milicić, Ljiljana
AU  - Stojanović, Jovica
AU  - Radojević, Zagorka
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/602
AB  - Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Cavitation Properties of Rendering Mortars with Micro Silica Addition
EP  - 459
IS  - 4
SP  - 445
VL  - 53
DO  - 10.2298/SOS2104445T
UR  - conv_936
ER  - 
@article{
author = "Terzić, Anja and Dojčinović, Marina and Milicić, Ljiljana and Stojanović, Jovica and Radojević, Zagorka",
year = "2021",
abstract = "Micro-silica is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as concrete and mortar. A comparative study of performances of rendering mortars with different quantities of micro silica was conducted. The experimental program included production of reference mortar based on Portland cement and quartz sand (CM) and three mortars with 5, 10, and 15 % addition of micro silica (SCM-5, SCM-10, and SCM-15). The effect that micro silica addition has on the thermal behavior and mechanical properties of mortars was discussed. Hydration mechanisms and thermally induced reactions were studied at temperatures ranging from ambient to 1100 degrees C by differential thermal analysis. The results were supported by X-ray diffraction analysis. The cementing efficiency of micro silica was assessed by cavitation erosion test. The changes in the morphology of mortar samples prior and upon cavitation testing were monitored by means of the scanning electron microscope imagining. It was found that 5 % of superfine micro silica (SCM-5 mortar) has positive effects on mechanical strengths (15 % increase in compressive strength) due to microstructure densification arising from the successive filling of voids by the micro silica. Addition of micro silica also improved the cavitation erosion resistance in comparison with reference cement mortar (SCM-5 showed cavitation velocity as low as 0.09 mg/min). This qualifies mortars with micro silica addition as building materials which can be safely employed in potential hydro-demolition environment.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Cavitation Properties of Rendering Mortars with Micro Silica Addition",
pages = "459-445",
number = "4",
volume = "53",
doi = "10.2298/SOS2104445T",
url = "conv_936"
}
Terzić, A., Dojčinović, M., Milicić, L., Stojanović, J.,& Radojević, Z.. (2021). Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 53(4), 445-459.
https://doi.org/10.2298/SOS2104445T
conv_936
Terzić A, Dojčinović M, Milicić L, Stojanović J, Radojević Z. Cavitation Properties of Rendering Mortars with Micro Silica Addition. in Science of Sintering. 2021;53(4):445-459.
doi:10.2298/SOS2104445T
conv_936 .
Terzić, Anja, Dojčinović, Marina, Milicić, Ljiljana, Stojanović, Jovica, Radojević, Zagorka, "Cavitation Properties of Rendering Mortars with Micro Silica Addition" in Science of Sintering, 53, no. 4 (2021):445-459,
https://doi.org/10.2298/SOS2104445T .,
conv_936 .
5
5

Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders

Terzić, Anja; Radulović, Dragan; Pezo, Milada; Stojanović, Jovica; Pezo, Lato; Radojević, Zagorka; Andrić, Ljubiša

(Elsevier Sci Ltd, Oxford, 2020)

TY  - JOUR
AU  - Terzić, Anja
AU  - Radulović, Dragan
AU  - Pezo, Milada
AU  - Stojanović, Jovica
AU  - Pezo, Lato
AU  - Radojević, Zagorka
AU  - Andrić, Ljubiša
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/541
AB  - The optimal outputs of pyrophyllite mechano-chemical activation in an ultra-centrifugal mill performing under different technological conditions were determined by analytical modeling and verified via Artificial Neural Network in order to be employed in the production of cement-based binders. Cluster Analysis and Principal Component Analysis were utilized in assessment of the effect of activation process parameters on the activated pyrophyllite quality. Artificial Neural Network which performed with high prediction accuracy, i.e. 0.914 during the training period, was sufficient for precise prediction of activated pyrophyllite quality in a wide range of processing parameters. The probability of utilization of observed activation products was estimated through interrelation of technological parameters (mesh size sieve, activation period, specific energy consumption) and acquired characteristics of pyrophyllite (grain diameter, specific surface area). The optimal products singled out from each activation sequence were used as mineral additives in the mix-designs of four cement binders (cement replacement portion was 30%). Influence of activated pyrophyllite additions on the cement chemistry, mineral phase compositions and microstructures of the cement binders were monitored by instrumental techniques (DTA/TGA, XRD, SEM). Activated pyrophyllite showed characteristics of pozzolana as it slightly accelerated early stages of hydration, decreased cement hydration energy and increased the quantity of cement mineral alite at later hydration stages. Micron-sized crystalline foila characteristic for mechanically activated pyrophyllite formed micro-reinforcement within cement binder microstructure.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders
VL  - 258
DO  - 10.1016/j.conbuildmat.2020.119721
UR  - conv_891
ER  - 
@article{
author = "Terzić, Anja and Radulović, Dragan and Pezo, Milada and Stojanović, Jovica and Pezo, Lato and Radojević, Zagorka and Andrić, Ljubiša",
year = "2020",
abstract = "The optimal outputs of pyrophyllite mechano-chemical activation in an ultra-centrifugal mill performing under different technological conditions were determined by analytical modeling and verified via Artificial Neural Network in order to be employed in the production of cement-based binders. Cluster Analysis and Principal Component Analysis were utilized in assessment of the effect of activation process parameters on the activated pyrophyllite quality. Artificial Neural Network which performed with high prediction accuracy, i.e. 0.914 during the training period, was sufficient for precise prediction of activated pyrophyllite quality in a wide range of processing parameters. The probability of utilization of observed activation products was estimated through interrelation of technological parameters (mesh size sieve, activation period, specific energy consumption) and acquired characteristics of pyrophyllite (grain diameter, specific surface area). The optimal products singled out from each activation sequence were used as mineral additives in the mix-designs of four cement binders (cement replacement portion was 30%). Influence of activated pyrophyllite additions on the cement chemistry, mineral phase compositions and microstructures of the cement binders were monitored by instrumental techniques (DTA/TGA, XRD, SEM). Activated pyrophyllite showed characteristics of pozzolana as it slightly accelerated early stages of hydration, decreased cement hydration energy and increased the quantity of cement mineral alite at later hydration stages. Micron-sized crystalline foila characteristic for mechanically activated pyrophyllite formed micro-reinforcement within cement binder microstructure.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders",
volume = "258",
doi = "10.1016/j.conbuildmat.2020.119721",
url = "conv_891"
}
Terzić, A., Radulović, D., Pezo, M., Stojanović, J., Pezo, L., Radojević, Z.,& Andrić, L.. (2020). Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 258.
https://doi.org/10.1016/j.conbuildmat.2020.119721
conv_891
Terzić A, Radulović D, Pezo M, Stojanović J, Pezo L, Radojević Z, Andrić L. Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders. in Construction and Building Materials. 2020;258.
doi:10.1016/j.conbuildmat.2020.119721
conv_891 .
Terzić, Anja, Radulović, Dragan, Pezo, Milada, Stojanović, Jovica, Pezo, Lato, Radojević, Zagorka, Andrić, Ljubiša, "Prediction model based on artificial neural network for pyrophyllite mechano-chemical activation as an integral step in production of cement binders" in Construction and Building Materials, 258 (2020),
https://doi.org/10.1016/j.conbuildmat.2020.119721 .,
conv_891 .
9
2
11

Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes

Terzić, Anja; Stojanović, Jovica; Andrić, Ljubiša; Milicić, Ljiljana; Radojević, Zagorka

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2020)

TY  - JOUR
AU  - Terzić, Anja
AU  - Stojanović, Jovica
AU  - Andrić, Ljubiša
AU  - Milicić, Ljiljana
AU  - Radojević, Zagorka
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/540
AB  - This experimental study was conducted with an aim to investigate the effect of the elevated temperature on the mineral phase composition, microstructure and mechanical properties of the thermal insulation lightweight concretes. The first group of experimental concretes was based on the expanded vermiculite and expanded perlite used as lightweight aggregates (in 65 wt%) in combination with either ordinary Portland cement or refractory calcium aluminate cement. The mix-design of the second group of concretes comprised standard quartz aggregate, vermiculite or perlite as aggregate replacement (25 wt%) and binder (PC or CAC). A total of 10 concrete mix-designs were fabricated in form of 40x40x160 mm samples which were submitted to heat-treatment at 400 degrees, 600 degrees, 800 degrees and 1000 degrees C upon standard 28-days period of curing and hardening. The changes in crystallinity and mineral phase composition induced by temperature were monitored by X-ray diffraction technique. Microstructural visualizations of the non-fired and fired concrete samples were conducted by scanning electron microscopy accompanied with EDX analysis. The results indicated that despite the decrease in compressive strengths upon firing, investigated lightweight concretes can be categorized both as thermal insulators and structural materials.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes
EP  - 162
IS  - 2
SP  - 149
VL  - 52
DO  - 10.2298/SOS2002149T
UR  - conv_892
ER  - 
@article{
author = "Terzić, Anja and Stojanović, Jovica and Andrić, Ljubiša and Milicić, Ljiljana and Radojević, Zagorka",
year = "2020",
abstract = "This experimental study was conducted with an aim to investigate the effect of the elevated temperature on the mineral phase composition, microstructure and mechanical properties of the thermal insulation lightweight concretes. The first group of experimental concretes was based on the expanded vermiculite and expanded perlite used as lightweight aggregates (in 65 wt%) in combination with either ordinary Portland cement or refractory calcium aluminate cement. The mix-design of the second group of concretes comprised standard quartz aggregate, vermiculite or perlite as aggregate replacement (25 wt%) and binder (PC or CAC). A total of 10 concrete mix-designs were fabricated in form of 40x40x160 mm samples which were submitted to heat-treatment at 400 degrees, 600 degrees, 800 degrees and 1000 degrees C upon standard 28-days period of curing and hardening. The changes in crystallinity and mineral phase composition induced by temperature were monitored by X-ray diffraction technique. Microstructural visualizations of the non-fired and fired concrete samples were conducted by scanning electron microscopy accompanied with EDX analysis. The results indicated that despite the decrease in compressive strengths upon firing, investigated lightweight concretes can be categorized both as thermal insulators and structural materials.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes",
pages = "162-149",
number = "2",
volume = "52",
doi = "10.2298/SOS2002149T",
url = "conv_892"
}
Terzić, A., Stojanović, J., Andrić, L., Milicić, L.,& Radojević, Z.. (2020). Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 52(2), 149-162.
https://doi.org/10.2298/SOS2002149T
conv_892
Terzić A, Stojanović J, Andrić L, Milicić L, Radojević Z. Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes. in Science of Sintering. 2020;52(2):149-162.
doi:10.2298/SOS2002149T
conv_892 .
Terzić, Anja, Stojanović, Jovica, Andrić, Ljubiša, Milicić, Ljiljana, Radojević, Zagorka, "Performances of Vermiculite and Perlite Based Thermal Insulation Lightweight Concretes" in Science of Sintering, 52, no. 2 (2020):149-162,
https://doi.org/10.2298/SOS2002149T .,
conv_892 .
4
3
5

Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics

Terzić, Anja; Obradović, Nina; Kosanović, Darko; Stojanović, Jovica; Đorđević, Antonije; Andrić, Ljubiša; Pavlović, Vladimir B.

(Elsevier Sci Ltd, Oxford, 2019)

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Kosanović, Darko
AU  - Stojanović, Jovica
AU  - Đorđević, Antonije
AU  - Andrić, Ljubiša
AU  - Pavlović, Vladimir B.
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/519
AB  - Steatite, as ceramic with composition predominantly resting on magnesium silicate, was produced from economic resources - talc, aluminosilicate clays, and either BaCO3 or feldspar as flux. Titanium dioxide was a doping agent. Four steatite mixtures were mechanically activated in a planetary ball mill for 30, 45 or 60 min, prior to the thermal treatment. Two-step sintering with initial phase set at 1350 degrees C and holding period conducted at 1250 degrees C was applied to initiate diffusion and prevent grain growth. Thereby, a high density ceramic material with low-porous submicron structure was acquired. The effects of TiO2 addition on densification, microstructure, and dielectric characteristics of steatites were monitored. The thermal stability of green mixtures was tested by differential thermal and thermogravimetric analyses. Changes in crystallinity and mineral phase composition were observed by the X-ray diffraction technique. Microstructural visualization with spatial arrangements of individual chemical elements on surface of the sintered ceramics was acquired by scanning electron microscopy accompanied with EDS mapping. In order to test the possibility of employment of the obtained steatites in insulation materials, electrical measurements were conducted by recording variations of the dielectric constant and loss tangent as a function of alternations in the mix-design and the mechanical activation period.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics
EP  - 3022
IS  - 3
SP  - 3013
VL  - 45
DO  - 10.1016/j.ceramint.2018.10.120
UR  - conv_842
ER  - 
@article{
author = "Terzić, Anja and Obradović, Nina and Kosanović, Darko and Stojanović, Jovica and Đorđević, Antonije and Andrić, Ljubiša and Pavlović, Vladimir B.",
year = "2019",
abstract = "Steatite, as ceramic with composition predominantly resting on magnesium silicate, was produced from economic resources - talc, aluminosilicate clays, and either BaCO3 or feldspar as flux. Titanium dioxide was a doping agent. Four steatite mixtures were mechanically activated in a planetary ball mill for 30, 45 or 60 min, prior to the thermal treatment. Two-step sintering with initial phase set at 1350 degrees C and holding period conducted at 1250 degrees C was applied to initiate diffusion and prevent grain growth. Thereby, a high density ceramic material with low-porous submicron structure was acquired. The effects of TiO2 addition on densification, microstructure, and dielectric characteristics of steatites were monitored. The thermal stability of green mixtures was tested by differential thermal and thermogravimetric analyses. Changes in crystallinity and mineral phase composition were observed by the X-ray diffraction technique. Microstructural visualization with spatial arrangements of individual chemical elements on surface of the sintered ceramics was acquired by scanning electron microscopy accompanied with EDS mapping. In order to test the possibility of employment of the obtained steatites in insulation materials, electrical measurements were conducted by recording variations of the dielectric constant and loss tangent as a function of alternations in the mix-design and the mechanical activation period.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics",
pages = "3022-3013",
number = "3",
volume = "45",
doi = "10.1016/j.ceramint.2018.10.120",
url = "conv_842"
}
Terzić, A., Obradović, N., Kosanović, D., Stojanović, J., Đorđević, A., Andrić, L.,& Pavlović, V. B.. (2019). Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics. in Ceramics International
Elsevier Sci Ltd, Oxford., 45(3), 3013-3022.
https://doi.org/10.1016/j.ceramint.2018.10.120
conv_842
Terzić A, Obradović N, Kosanović D, Stojanović J, Đorđević A, Andrić L, Pavlović VB. Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics. in Ceramics International. 2019;45(3):3013-3022.
doi:10.1016/j.ceramint.2018.10.120
conv_842 .
Terzić, Anja, Obradović, Nina, Kosanović, Darko, Stojanović, Jovica, Đorđević, Antonije, Andrić, Ljubiša, Pavlović, Vladimir B., "Effects of mechanical-activation and TiO2 addition on the behavior of two-step sintered steatite ceramics" in Ceramics International, 45, no. 3 (2019):3013-3022,
https://doi.org/10.1016/j.ceramint.2018.10.120 .,
conv_842 .
1
2
2

Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash

Terzić, Anja; Pezo, Lato; Milicić, Ljiljana; Mijatović, Nevenka; Radojević, Zagorka; Radulović, Dragan; Andrić, Ljubiša

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2019)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Milicić, Ljiljana
AU  - Mijatović, Nevenka
AU  - Radojević, Zagorka
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
PY  - 2019
UR  - https://ritnms.itnms.ac.rs/handle/123456789/503
AB  - Mineral additives are extensively applied as cement replacement materials in both construction concrete and mortar. Fly ash is one of the most commonly utilized additives which improve Theological properties, as well as thermal and mechanical behavior of mortar, and as such it has been widely investigated. This industrial byproduct comprises heavy metals in its composition; therefore further research is needed to optimize its effective dosage. Moreover, certain sorptive clays, such as natural zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. Ten experimental mortars are prepared with Portland cement, river sand and addition of fly ash, zeolite and/or bentonite in accordance with chemometric experimental design rules. The aim of the study was to investigate the effect of mineral additives on thermal and mechanical performances of mortar. Thermal characteristics were monitored via dilatometric analysis and DTA method. Principal component analysis was used on the results of physico-mechanical testing (workability, bulk density, water absorption, shrinkage, compressive and flexural strength) to enable the divisions of the observed samples into groups in the factor space. The performance of Artificial Neural Network was compared with the experimental data in order to develop rapid and accurate method for prediction of mechanical parameters of mortar. The ANN model showed high overall prediction accuracy (r(2) = 0.989, during training cycle). The test results indicate that incorporation of the mineral additives gave cost effective mortars with sufficiently good properties. However, tools of analytical modeling highlighted mortar with zeolite and fly ash as the optimal composition regarding its mechanical performance.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash
EP  - 56
IS  - 1
SP  - 39
VL  - 51
DO  - 10.2298/SOS1901039T
UR  - conv_865
ER  - 
@article{
author = "Terzić, Anja and Pezo, Lato and Milicić, Ljiljana and Mijatović, Nevenka and Radojević, Zagorka and Radulović, Dragan and Andrić, Ljubiša",
year = "2019",
abstract = "Mineral additives are extensively applied as cement replacement materials in both construction concrete and mortar. Fly ash is one of the most commonly utilized additives which improve Theological properties, as well as thermal and mechanical behavior of mortar, and as such it has been widely investigated. This industrial byproduct comprises heavy metals in its composition; therefore further research is needed to optimize its effective dosage. Moreover, certain sorptive clays, such as natural zeolite and bentonite, can prevent migration of toxic elements from fly ash by immobilizing them in their structure. Ten experimental mortars are prepared with Portland cement, river sand and addition of fly ash, zeolite and/or bentonite in accordance with chemometric experimental design rules. The aim of the study was to investigate the effect of mineral additives on thermal and mechanical performances of mortar. Thermal characteristics were monitored via dilatometric analysis and DTA method. Principal component analysis was used on the results of physico-mechanical testing (workability, bulk density, water absorption, shrinkage, compressive and flexural strength) to enable the divisions of the observed samples into groups in the factor space. The performance of Artificial Neural Network was compared with the experimental data in order to develop rapid and accurate method for prediction of mechanical parameters of mortar. The ANN model showed high overall prediction accuracy (r(2) = 0.989, during training cycle). The test results indicate that incorporation of the mineral additives gave cost effective mortars with sufficiently good properties. However, tools of analytical modeling highlighted mortar with zeolite and fly ash as the optimal composition regarding its mechanical performance.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash",
pages = "56-39",
number = "1",
volume = "51",
doi = "10.2298/SOS1901039T",
url = "conv_865"
}
Terzić, A., Pezo, L., Milicić, L., Mijatović, N., Radojević, Z., Radulović, D.,& Andrić, L.. (2019). Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 51(1), 39-56.
https://doi.org/10.2298/SOS1901039T
conv_865
Terzić A, Pezo L, Milicić L, Mijatović N, Radojević Z, Radulović D, Andrić L. Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash. in Science of Sintering. 2019;51(1):39-56.
doi:10.2298/SOS1901039T
conv_865 .
Terzić, Anja, Pezo, Lato, Milicić, Ljiljana, Mijatović, Nevenka, Radojević, Zagorka, Radulović, Dragan, Andrić, Ljubiša, "Thermal and Mechanical Behavior of Composite Mortars Containing Natural Sorptive Clays and Fly Ash" in Science of Sintering, 51, no. 1 (2019):39-56,
https://doi.org/10.2298/SOS1901039T .,
conv_865 .
3
8
9

Dobijanje koncentrata K/Pb i K/Zn tržišnog kvaliteta postupkom gravitacijske koncentracije bogate rude sa povećanim sadržajem metaličnih minerala iz “Pb-Zn” Rudnika Grot

Radulović, Dragan; Andrić, Ljubiša; Terzić, Anja; Petrov, Milan; Stojanović, Jovica; Trumić, Milan; Trumić, Maja

(Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina, 2018)


                                            

                                            
Radulović, D., Andrić, L., Terzić, A., Petrov, M., Stojanović, J., Trumić, M.,& Trumić, M.. (2018). Dobijanje koncentrata K/Pb i K/Zn tržišnog kvaliteta postupkom gravitacijske koncentracije bogate rude sa povećanim sadržajem metaličnih minerala iz “Pb-Zn” Rudnika Grot. 
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina..
Radulović D, Andrić L, Terzić A, Petrov M, Stojanović J, Trumić M, Trumić M. Dobijanje koncentrata K/Pb i K/Zn tržišnog kvaliteta postupkom gravitacijske koncentracije bogate rude sa povećanim sadržajem metaličnih minerala iz “Pb-Zn” Rudnika Grot. 2018;..
Radulović, Dragan, Andrić, Ljubiša, Terzić, Anja, Petrov, Milan, Stojanović, Jovica, Trumić, Milan, Trumić, Maja, "Dobijanje koncentrata K/Pb i K/Zn tržišnog kvaliteta postupkom gravitacijske koncentracije bogate rude sa povećanim sadržajem metaličnih minerala iz “Pb-Zn” Rudnika Grot" (2018).

The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders

Terzić, Anja; Pezo, Lato; Mijatović, Nevenka; Stojanović, Jovica; Kragović, Milan; Milicić, Ljiljana; Andrić, Ljubiša

(Elsevier Sci Ltd, Oxford, 2018)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Mijatović, Nevenka
AU  - Stojanović, Jovica
AU  - Kragović, Milan
AU  - Milicić, Ljiljana
AU  - Andrić, Ljubiša
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/469
AB  - Instrumental analyses accompanied by analytical modeling tools were employed to assess physico-chemical changes induced by variations in chemical composition of cementitious composites, i.e. mortar binders. Coal combustion ash was utilized as pozzolanic mineral additive. The binders' mix-design was supplemented with sorptive clays to prevent migration of toxic elements from fly ash. The experiment was established on the premise of clay's ion-exchanging ability. Ten binders comprising cement CEM I 42.5 and fly ash, zeolite and/or bentonite additions were prepared in accordance with chemometric experimental design rules. Chemical composition was determined via XRF method. The changes in mineral phases and crystallinity were traced by X-ray diffraction. Hydration mechanisms and thermal behavior were investigated via DTA/TGA. The chemical bonds were identified by FTIR. Morphology of hardened samples was detected by SEM. Mathematical tools employed data sets of instrumental analyses to form a clear differentiation between binders and to assess changes caused by adoption of mineral additives in the mix designs. Sorptive clays showed pozzolanic behavior, thereby causing no incapacitation to the cement hydration mechanism, and classifying as a possible economical resources which can be used in production technology of construction materials to redeem environmental pollution issues of building industry.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders
EP  - 210
SP  - 199
VL  - 180
DO  - 10.1016/j.conbuildmat.2018.06.007
UR  - conv_829
ER  - 
@article{
author = "Terzić, Anja and Pezo, Lato and Mijatović, Nevenka and Stojanović, Jovica and Kragović, Milan and Milicić, Ljiljana and Andrić, Ljubiša",
year = "2018",
abstract = "Instrumental analyses accompanied by analytical modeling tools were employed to assess physico-chemical changes induced by variations in chemical composition of cementitious composites, i.e. mortar binders. Coal combustion ash was utilized as pozzolanic mineral additive. The binders' mix-design was supplemented with sorptive clays to prevent migration of toxic elements from fly ash. The experiment was established on the premise of clay's ion-exchanging ability. Ten binders comprising cement CEM I 42.5 and fly ash, zeolite and/or bentonite additions were prepared in accordance with chemometric experimental design rules. Chemical composition was determined via XRF method. The changes in mineral phases and crystallinity were traced by X-ray diffraction. Hydration mechanisms and thermal behavior were investigated via DTA/TGA. The chemical bonds were identified by FTIR. Morphology of hardened samples was detected by SEM. Mathematical tools employed data sets of instrumental analyses to form a clear differentiation between binders and to assess changes caused by adoption of mineral additives in the mix designs. Sorptive clays showed pozzolanic behavior, thereby causing no incapacitation to the cement hydration mechanism, and classifying as a possible economical resources which can be used in production technology of construction materials to redeem environmental pollution issues of building industry.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders",
pages = "210-199",
volume = "180",
doi = "10.1016/j.conbuildmat.2018.06.007",
url = "conv_829"
}
Terzić, A., Pezo, L., Mijatović, N., Stojanović, J., Kragović, M., Milicić, L.,& Andrić, L.. (2018). The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 180, 199-210.
https://doi.org/10.1016/j.conbuildmat.2018.06.007
conv_829
Terzić A, Pezo L, Mijatović N, Stojanović J, Kragović M, Milicić L, Andrić L. The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders. in Construction and Building Materials. 2018;180:199-210.
doi:10.1016/j.conbuildmat.2018.06.007
conv_829 .
Terzić, Anja, Pezo, Lato, Mijatović, Nevenka, Stojanović, Jovica, Kragović, Milan, Milicić, Ljiljana, Andrić, Ljubiša, "The effect of alternations in mineral additives (zeolite, bentonite, fly ash) on physico-chemical behavior of Portland cement based binders" in Construction and Building Materials, 180 (2018):199-210,
https://doi.org/10.1016/j.conbuildmat.2018.06.007 .,
conv_829 .
34
22
37

Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering

Terzić, Anja; Obradović, Nina; Pouchly, Vaclav; Stojanović, Jovica; Maca, Karel; Pavlović, Vladimir B.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2018)

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Pouchly, Vaclav
AU  - Stojanović, Jovica
AU  - Maca, Karel
AU  - Pavlović, Vladimir B.
PY  - 2018
UR  - https://ritnms.itnms.ac.rs/handle/123456789/460
AB  - The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200 degrees C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100 degrees C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800 degrees C/1 min or 1000 degrees C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000 degrees C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering
EP  - 312
IS  - 3
SP  - 299
VL  - 50
DO  - 10.2298/SOS1803299T
UR  - conv_838
ER  - 
@article{
author = "Terzić, Anja and Obradović, Nina and Pouchly, Vaclav and Stojanović, Jovica and Maca, Karel and Pavlović, Vladimir B.",
year = "2018",
abstract = "The influence of the sintering method on the mineral phase transformations and development of the crystalline microstructure of steatite ceramics was investigated. The steatite samples were fabricated from talc and bentonite as low-cost raw materials. Feldspar and barium carbonate, as fluxing agents, were altered in the steatite composition. Dilatometric analysis was applied in the monitoring of the dimensional changes and thereby densification of steatite during the traditional sintering (TS) procedure up to 1200 degrees C. Spark plasma sintering (SPS) method was used under the following sintering conditions: 100 degrees C/min heating rate, uniaxial pressure of 50 MPa; sintering temperature 800 degrees C/1 min or 1000 degrees C/2 min. Crystallinity changes and mineral phase transition during sintering were observed by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy equipped with the EDS mapping. It was found that SPS sintering facilitated all microstructural changes during high temperature treatment and shifted them to lower temperatures. SPS treatment conducted at 1000 degrees C resulted in maximum densification of the steatite powder compacts and the formation stabilized protoenstatite structure.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering",
pages = "312-299",
number = "3",
volume = "50",
doi = "10.2298/SOS1803299T",
url = "conv_838"
}
Terzić, A., Obradović, N., Pouchly, V., Stojanović, J., Maca, K.,& Pavlović, V. B.. (2018). Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 50(3), 299-312.
https://doi.org/10.2298/SOS1803299T
conv_838
Terzić A, Obradović N, Pouchly V, Stojanović J, Maca K, Pavlović VB. Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering. in Science of Sintering. 2018;50(3):299-312.
doi:10.2298/SOS1803299T
conv_838 .
Terzić, Anja, Obradović, Nina, Pouchly, Vaclav, Stojanović, Jovica, Maca, Karel, Pavlović, Vladimir B., "Microstructure and Phase Composition Of Steatite Ceramics Sintered by Traditional and Spark Plasma Sintering" in Science of Sintering, 50, no. 3 (2018):299-312,
https://doi.org/10.2298/SOS1803299T .,
conv_838 .
6
3
5

The construction and ceramics industry waste gypsum valorization possibilities

Radulović, Dragan; Terzić, Anja; Andrić, Ljubiša

(Paris : Atlantis Press, 2017)

TY  - CHAP
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1087
AB  - The construction work and ceramic materials industry debris is an important source of waste that ends up unused and disposed on municipal solid waste landfills. Besides concrete and clay based materials, gypsum waste is one of the larger contributors to the building and industry byproducts production chain. The possibilities of waste gypsum revitalization and reutilization in the ceramic industry and civil engineering are investigated in this paper. The gypsum in its dihydrate form is used for moulds in the production of ceramic cast materials. The interest in recovering gypsum waste is increasing as the demand for sustainable production grows. Before secondary gypsum is reapplied, its properties and the recycling process have to be technically and environmentally evaluated. By recy- cling gypsum waste, natural gypsum deposits are being preserved. Furthermore, large percentage of this byproduct achieves its reutilization potential. In this con- text, this paper investigates physical properties, the chemical composition and the thermal behavior of the waste gypsum. The goal is to assess the feasibility of using waste gypsum and to evaluate the viability of the recycling process. The results indicate that the reutilization of gypsum waste might provide a viable substitute for clay in the ceramics industry. Reapplication of the revitalized secondary gypsum is approved from both economical and environmental aspect.
PB  - Paris : Atlantis Press
T2  - IV Advanced Ceramics and Applications Conference
T1  - The construction and ceramics industry waste gypsum valorization possibilities
EP  - 491
SP  - 475
DO  - 10.2991/978-94-6239-213-7
ER  - 
@inbook{
author = "Radulović, Dragan and Terzić, Anja and Andrić, Ljubiša",
year = "2017",
abstract = "The construction work and ceramic materials industry debris is an important source of waste that ends up unused and disposed on municipal solid waste landfills. Besides concrete and clay based materials, gypsum waste is one of the larger contributors to the building and industry byproducts production chain. The possibilities of waste gypsum revitalization and reutilization in the ceramic industry and civil engineering are investigated in this paper. The gypsum in its dihydrate form is used for moulds in the production of ceramic cast materials. The interest in recovering gypsum waste is increasing as the demand for sustainable production grows. Before secondary gypsum is reapplied, its properties and the recycling process have to be technically and environmentally evaluated. By recy- cling gypsum waste, natural gypsum deposits are being preserved. Furthermore, large percentage of this byproduct achieves its reutilization potential. In this con- text, this paper investigates physical properties, the chemical composition and the thermal behavior of the waste gypsum. The goal is to assess the feasibility of using waste gypsum and to evaluate the viability of the recycling process. The results indicate that the reutilization of gypsum waste might provide a viable substitute for clay in the ceramics industry. Reapplication of the revitalized secondary gypsum is approved from both economical and environmental aspect.",
publisher = "Paris : Atlantis Press",
journal = "IV Advanced Ceramics and Applications Conference",
booktitle = "The construction and ceramics industry waste gypsum valorization possibilities",
pages = "491-475",
doi = "10.2991/978-94-6239-213-7"
}
Radulović, D., Terzić, A.,& Andrić, L.. (2017). The construction and ceramics industry waste gypsum valorization possibilities. in IV Advanced Ceramics and Applications Conference
Paris : Atlantis Press., 475-491.
https://doi.org/10.2991/978-94-6239-213-7
Radulović D, Terzić A, Andrić L. The construction and ceramics industry waste gypsum valorization possibilities. in IV Advanced Ceramics and Applications Conference. 2017;:475-491.
doi:10.2991/978-94-6239-213-7 .
Radulović, Dragan, Terzić, Anja, Andrić, Ljubiša, "The construction and ceramics industry waste gypsum valorization possibilities" in IV Advanced Ceramics and Applications Conference (2017):475-491,
https://doi.org/10.2991/978-94-6239-213-7 . .
10

A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path

Radulović, Dragan; Božović, Darko; Terzić, Anja; Trumić, M. S.; Simić, Vladimir; Andrić, Ljubiša

(Goller Verlag Gmbh, Baden Baden, 2017)

TY  - JOUR
AU  - Radulović, Dragan
AU  - Božović, Darko
AU  - Terzić, Anja
AU  - Trumić, M. S.
AU  - Simić, Vladimir
AU  - Andrić, Ljubiša
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/440
AB  - Because of its physico-mechanical and physico-chemical characteristics, fine-ground (i.e. micronized) limestone is widely applied in the production of new materials. Limestone can be used as a filler, coating and/or powder in ceramic composites. The effect of its fine micronization depends on the type of equipment used and on the disintegration process. In this study, the emphasis was placed on investigation of the kinetics of the dry micronization milling of limestone in a state-of-the-art ultra-centrifugal mill with a peripheral comminuting path. The efficiency of the ultra-centrifugal mill with a peripheral comminuting path was determined based on a detailed investigation of the limestone dry micronization, which satisfied all the requirements for technological parameters as well as for micronized product parameters. On the basis of the investigation of these parameters and theory of dry micronization conducted in a state-of-the-art mill with use of advanced instrumental techniques for determination and observation of the most significant physical and chemical characteristics, a kinetics model was developed to serve as the basis for quick and effective determination of micronization quality and efficiency. In this paper, the results of grinding in a Retsch ZM-1 ultra-centrifugal mill were analyzed in order to optimize and automate the process of ultrafine micronization.
PB  - Goller Verlag Gmbh, Baden Baden
T2  - Journal of Ceramic Science and Technology
T1  - A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path
EP  - 304
IS  - 2
SP  - 295
VL  - 8
DO  - 10.4416/JCST2017-00022
UR  - conv_799
ER  - 
@article{
author = "Radulović, Dragan and Božović, Darko and Terzić, Anja and Trumić, M. S. and Simić, Vladimir and Andrić, Ljubiša",
year = "2017",
abstract = "Because of its physico-mechanical and physico-chemical characteristics, fine-ground (i.e. micronized) limestone is widely applied in the production of new materials. Limestone can be used as a filler, coating and/or powder in ceramic composites. The effect of its fine micronization depends on the type of equipment used and on the disintegration process. In this study, the emphasis was placed on investigation of the kinetics of the dry micronization milling of limestone in a state-of-the-art ultra-centrifugal mill with a peripheral comminuting path. The efficiency of the ultra-centrifugal mill with a peripheral comminuting path was determined based on a detailed investigation of the limestone dry micronization, which satisfied all the requirements for technological parameters as well as for micronized product parameters. On the basis of the investigation of these parameters and theory of dry micronization conducted in a state-of-the-art mill with use of advanced instrumental techniques for determination and observation of the most significant physical and chemical characteristics, a kinetics model was developed to serve as the basis for quick and effective determination of micronization quality and efficiency. In this paper, the results of grinding in a Retsch ZM-1 ultra-centrifugal mill were analyzed in order to optimize and automate the process of ultrafine micronization.",
publisher = "Goller Verlag Gmbh, Baden Baden",
journal = "Journal of Ceramic Science and Technology",
title = "A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path",
pages = "304-295",
number = "2",
volume = "8",
doi = "10.4416/JCST2017-00022",
url = "conv_799"
}
Radulović, D., Božović, D., Terzić, A., Trumić, M. S., Simić, V.,& Andrić, L.. (2017). A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path. in Journal of Ceramic Science and Technology
Goller Verlag Gmbh, Baden Baden., 8(2), 295-304.
https://doi.org/10.4416/JCST2017-00022
conv_799
Radulović D, Božović D, Terzić A, Trumić MS, Simić V, Andrić L. A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path. in Journal of Ceramic Science and Technology. 2017;8(2):295-304.
doi:10.4416/JCST2017-00022
conv_799 .
Radulović, Dragan, Božović, Darko, Terzić, Anja, Trumić, M. S., Simić, Vladimir, Andrić, Ljubiša, "A Kinetic Study of Limestone Dry Micronization in an Ultra-Centrifugal Mill with Peripheral Comminuting Path" in Journal of Ceramic Science and Technology, 8, no. 2 (2017):295-304,
https://doi.org/10.4416/JCST2017-00022 .,
conv_799 .

The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites

Radulović, Dragan; Terzić, Anja; Pezo, Lato; Andrić, Ljubiša; Grigorova, Irena

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2017)

TY  - JOUR
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Grigorova, Irena
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/435
AB  - The limestone, as an economically sustainable and easily available basic raw material, is frequently utilized in the building industry for resolving of the environmental protection issues. The limestone is incorporated in a cementitious system either by grinding with cement clinker, or by blending with the binder during concrete production. The employing of powdery limestone as partial cement replacement gives the construction composites with properties comparable to that of conventional concrete. The study of limestone thermal behavior and its chemistry is crucial for the prognosis of the designed composites properties. In this work, the instrumental techniques (atomic emission spectroscopy, differential thermal and thermo-gravimetric analysis, Fourier transform infrared spectroscopy) and the Principal component analysis were employed to discriminate and classify 22 limestone types. The PCA statistical method, as a means of spectra and experimental data fingerprinting, grouped the samples in a multi-dimensional factor space producing four graphical prognosis - one for each instrumental method. DTA/TG peak values varied the most in a short range between 830-870 degrees C, while FTIR spectra showed the highest diversity in the 867-887 cm(-1) and 1237-1647 cm(-1) ranges. This research was governed by an idea to reveal whether it is possible to differentiate various limestone types and to predict the possibility of their employment in construction composites on the basis of the results of instrumental and mathematical analyses.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites
EP  - 261
IS  - 3
SP  - 247
VL  - 49
DO  - 10.2298/SOS1703247R
UR  - conv_807
ER  - 
@article{
author = "Radulović, Dragan and Terzić, Anja and Pezo, Lato and Andrić, Ljubiša and Grigorova, Irena",
year = "2017",
abstract = "The limestone, as an economically sustainable and easily available basic raw material, is frequently utilized in the building industry for resolving of the environmental protection issues. The limestone is incorporated in a cementitious system either by grinding with cement clinker, or by blending with the binder during concrete production. The employing of powdery limestone as partial cement replacement gives the construction composites with properties comparable to that of conventional concrete. The study of limestone thermal behavior and its chemistry is crucial for the prognosis of the designed composites properties. In this work, the instrumental techniques (atomic emission spectroscopy, differential thermal and thermo-gravimetric analysis, Fourier transform infrared spectroscopy) and the Principal component analysis were employed to discriminate and classify 22 limestone types. The PCA statistical method, as a means of spectra and experimental data fingerprinting, grouped the samples in a multi-dimensional factor space producing four graphical prognosis - one for each instrumental method. DTA/TG peak values varied the most in a short range between 830-870 degrees C, while FTIR spectra showed the highest diversity in the 867-887 cm(-1) and 1237-1647 cm(-1) ranges. This research was governed by an idea to reveal whether it is possible to differentiate various limestone types and to predict the possibility of their employment in construction composites on the basis of the results of instrumental and mathematical analyses.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites",
pages = "261-247",
number = "3",
volume = "49",
doi = "10.2298/SOS1703247R",
url = "conv_807"
}
Radulović, D., Terzić, A., Pezo, L., Andrić, L.,& Grigorova, I.. (2017). The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(3), 247-261.
https://doi.org/10.2298/SOS1703247R
conv_807
Radulović D, Terzić A, Pezo L, Andrić L, Grigorova I. The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites. in Science of Sintering. 2017;49(3):247-261.
doi:10.2298/SOS1703247R
conv_807 .
Radulović, Dragan, Terzić, Anja, Pezo, Lato, Andrić, Ljubiša, Grigorova, Irena, "The Chemometric Study of Limestone Physico-chemical Properties and Thermal Behavior for Application in Construction Composites" in Science of Sintering, 49, no. 3 (2017):247-261,
https://doi.org/10.2298/SOS1703247R .,
conv_807 .
6
5
7

Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials

Terzić, Anja; Obradović, Nina; Stojanović, Jovica; Pavlović, Vladimir; Andrić, Ljubiša; Olcan, Dragan; Đorđević, Antonije

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
AU  - Andrić, Ljubiša
AU  - Olcan, Dragan
AU  - Đorđević, Antonije
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/432
AB  - The focus of the study was on providing insights into interconnections between sintering and development of the crystalline microstructure, and consequently variations in dielectric behavior of four steatites fabricated from a low-cost raw material, i.e. talc. The changes, induced by the alternations of the binders (bentonite, kaolin clay) and fluxing agents (BaCO3, feldspar), were monitored in the temperature range 1000 degrees to 1250 degrees C in which complete densification and re-crystallization of the investigated structures were accomplished. The critical points in the synthesis of steatite materials were assessed by instrumental analyses. Crystallinity changes and mineral phase transition during sintering were monitored by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy accompanied with EDS mapping. The thermal stability was observed on the green mixtures using differential thermal and thermo gravimetric analyses. Electrical measurements recorded variations of the dielectric constant (epsilon(r)) and loss tangent (tan delta) as a function of the sintering temperature. The investigation highlighted critical design points, as well as the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.
PB  - Elsevier Sci Ltd, Oxford
T2  - Ceramics International
T1  - Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials
EP  - 13275
IS  - 16
SP  - 13264
VL  - 43
DO  - 10.1016/j.ceramint.2017.07.024
UR  - conv_806
ER  - 
@article{
author = "Terzić, Anja and Obradović, Nina and Stojanović, Jovica and Pavlović, Vladimir and Andrić, Ljubiša and Olcan, Dragan and Đorđević, Antonije",
year = "2017",
abstract = "The focus of the study was on providing insights into interconnections between sintering and development of the crystalline microstructure, and consequently variations in dielectric behavior of four steatites fabricated from a low-cost raw material, i.e. talc. The changes, induced by the alternations of the binders (bentonite, kaolin clay) and fluxing agents (BaCO3, feldspar), were monitored in the temperature range 1000 degrees to 1250 degrees C in which complete densification and re-crystallization of the investigated structures were accomplished. The critical points in the synthesis of steatite materials were assessed by instrumental analyses. Crystallinity changes and mineral phase transition during sintering were monitored by X-ray diffraction technique. Microstructural visualization of the samples and the spatial arrangements of individual chemical elements were achieved via scanning electron microscopy accompanied with EDS mapping. The thermal stability was observed on the green mixtures using differential thermal and thermo gravimetric analyses. Electrical measurements recorded variations of the dielectric constant (epsilon(r)) and loss tangent (tan delta) as a function of the sintering temperature. The investigation highlighted critical design points, as well as the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Ceramics International",
title = "Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials",
pages = "13275-13264",
number = "16",
volume = "43",
doi = "10.1016/j.ceramint.2017.07.024",
url = "conv_806"
}
Terzić, A., Obradović, N., Stojanović, J., Pavlović, V., Andrić, L., Olcan, D.,& Đorđević, A.. (2017). Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials. in Ceramics International
Elsevier Sci Ltd, Oxford., 43(16), 13264-13275.
https://doi.org/10.1016/j.ceramint.2017.07.024
conv_806
Terzić A, Obradović N, Stojanović J, Pavlović V, Andrić L, Olcan D, Đorđević A. Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials. in Ceramics International. 2017;43(16):13264-13275.
doi:10.1016/j.ceramint.2017.07.024
conv_806 .
Terzić, Anja, Obradović, Nina, Stojanović, Jovica, Pavlović, Vladimir, Andrić, Ljubiša, Olcan, Dragan, Đorđević, Antonije, "Influence of different bonding and fluxing agents on the sintering behavior and dielectric properties of steatite ceramic materials" in Ceramics International, 43, no. 16 (2017):13264-13275,
https://doi.org/10.1016/j.ceramint.2017.07.024 .,
conv_806 .
10
4
10

Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials

Terzić, Anja; Đorđević, Nataša; Mitrić, Miodrag; Marković, Smilja; Đorđević, Katarina; Pavlović, Vladimir B.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Đorđević, Nataša
AU  - Mitrić, Miodrag
AU  - Marković, Smilja
AU  - Đorđević, Katarina
AU  - Pavlović, Vladimir B.
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/452
AB  - Due to pozzolanic characteristics, fly ash is commonly used as a cement replacement in construction composites. Addition of natural clays with sorption ability (i.e. zeolite and bentonite) in to the fly ash based construction materials is of both scientific and industrial interest. Namely, due to the application of sorptive clay minerals, it is possible to immobilize toxic heavy metals from the composite structure. The thermal compatibility of fly ash and zeolite, as well as fly ash and bentonite, within the composite was observed during sintering procedure. The starting components were used in 1: 1 ratio and they were applied without additional mechanical treatment. The used compaction pressure for the tablets was 2 t.cm(-2). The sintering process was conducted at 1000 degrees C and 1200 degrees C for two hours in the air atmosphere. The mineralogical phase composition of the non-treated and sintered samples was analyzed using X-ray diffraction method. Scanning electron microscopy was applied in the analysis of the microstructure of starting and sintered samples. The thermal behavior was observed via DTA method. The influence of temperature on the properties of fly ash-zeolite and fly ash-bentonite composites was investigated.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials
EP  - 37
IS  - 1
SP  - 23
VL  - 49
DO  - 10.2298/SOS1701023T
UR  - conv_791
ER  - 
@article{
author = "Terzić, Anja and Đorđević, Nataša and Mitrić, Miodrag and Marković, Smilja and Đorđević, Katarina and Pavlović, Vladimir B.",
year = "2017",
abstract = "Due to pozzolanic characteristics, fly ash is commonly used as a cement replacement in construction composites. Addition of natural clays with sorption ability (i.e. zeolite and bentonite) in to the fly ash based construction materials is of both scientific and industrial interest. Namely, due to the application of sorptive clay minerals, it is possible to immobilize toxic heavy metals from the composite structure. The thermal compatibility of fly ash and zeolite, as well as fly ash and bentonite, within the composite was observed during sintering procedure. The starting components were used in 1: 1 ratio and they were applied without additional mechanical treatment. The used compaction pressure for the tablets was 2 t.cm(-2). The sintering process was conducted at 1000 degrees C and 1200 degrees C for two hours in the air atmosphere. The mineralogical phase composition of the non-treated and sintered samples was analyzed using X-ray diffraction method. Scanning electron microscopy was applied in the analysis of the microstructure of starting and sintered samples. The thermal behavior was observed via DTA method. The influence of temperature on the properties of fly ash-zeolite and fly ash-bentonite composites was investigated.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials",
pages = "37-23",
number = "1",
volume = "49",
doi = "10.2298/SOS1701023T",
url = "conv_791"
}
Terzić, A., Đorđević, N., Mitrić, M., Marković, S., Đorđević, K.,& Pavlović, V. B.. (2017). Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 49(1), 23-37.
https://doi.org/10.2298/SOS1701023T
conv_791
Terzić A, Đorđević N, Mitrić M, Marković S, Đorđević K, Pavlović VB. Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials. in Science of Sintering. 2017;49(1):23-37.
doi:10.2298/SOS1701023T
conv_791 .
Terzić, Anja, Đorđević, Nataša, Mitrić, Miodrag, Marković, Smilja, Đorđević, Katarina, Pavlović, Vladimir B., "Sintering of Fly Ash Based Composites with Zeolite and Bentonite Addition for Application in Construction Materials" in Science of Sintering, 49, no. 1 (2017):23-37,
https://doi.org/10.2298/SOS1701023T .,
conv_791 .
5
12
13

The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites

Terzić, Anja; Radulović, Dragan; Pezo, Lato; Andrić, Ljubiša; Milicić, Ljiljana; Stojanović, Jovica; Grigorova, Irena

(Elsevier Sci Ltd, Oxford, 2017)

TY  - JOUR
AU  - Terzić, Anja
AU  - Radulović, Dragan
AU  - Pezo, Lato
AU  - Andrić, Ljubiša
AU  - Milicić, Ljiljana
AU  - Stojanović, Jovica
AU  - Grigorova, Irena
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/454
AB  - The effect of the combined actions of milling and hydrophobization procedures applied in construction composites synthesis was investigated. The mortars were prepared with cement (CEM I 42.5) and calcite aggregate complying the standard 1:3 mix ratio. The limestone filler (10 wt%) was added to the mixture upon its mechano-chemical activation in an ultra-centrifugal mill. The activation variables (milling time, rotor velocity, sieve mesh size) were altered to achieve the optimal quality of the powder. The treatment was optimized via chemometric tools. The r(2) values (0.955-0.998) of second order polynomial models accurately predicted the output and the Standard score analysis chose the optimal activation parameters: 4.25 min; 48.58 m/s and 80 gm sieve. The selected filler and all three aggregate fractions were coated with stearic acid via dry procedure. The mortar mixes, prepared with uncoated (M1) and coated (M2) aggregate and filler, were cured for a period of 28 days during which compressive strength and water absorption were monitored. The dimensional changes in mortars were estimated via TMA dilatometer measurements. Thermo-analytical methods (DTA/TGA) were applied in the thermal behavior analysis. Mineralogical and morphological changes in the structure of hardened composite were detected by XRD and SEM, respectively. Limestone aggregate led to lower final compressive strengths in mortar, but it produced an infinitesimally small shrinkage at 1000 degrees C. The hydrophobization via stearic acid initiated the decrease in water absorption and formation of needle-like micro-network that filled structural voids reducing open porosity. The assessment of the effects of limestone utilization as a filler and as an aggregate on the mortar performances confirmed that this novel water-repellent composite is applicable in structural design.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites
EP  - 73
SP  - 61
VL  - 117
DO  - 10.1016/j.compositesb.2017.02.041
UR  - conv_794
ER  - 
@article{
author = "Terzić, Anja and Radulović, Dragan and Pezo, Lato and Andrić, Ljubiša and Milicić, Ljiljana and Stojanović, Jovica and Grigorova, Irena",
year = "2017",
abstract = "The effect of the combined actions of milling and hydrophobization procedures applied in construction composites synthesis was investigated. The mortars were prepared with cement (CEM I 42.5) and calcite aggregate complying the standard 1:3 mix ratio. The limestone filler (10 wt%) was added to the mixture upon its mechano-chemical activation in an ultra-centrifugal mill. The activation variables (milling time, rotor velocity, sieve mesh size) were altered to achieve the optimal quality of the powder. The treatment was optimized via chemometric tools. The r(2) values (0.955-0.998) of second order polynomial models accurately predicted the output and the Standard score analysis chose the optimal activation parameters: 4.25 min; 48.58 m/s and 80 gm sieve. The selected filler and all three aggregate fractions were coated with stearic acid via dry procedure. The mortar mixes, prepared with uncoated (M1) and coated (M2) aggregate and filler, were cured for a period of 28 days during which compressive strength and water absorption were monitored. The dimensional changes in mortars were estimated via TMA dilatometer measurements. Thermo-analytical methods (DTA/TGA) were applied in the thermal behavior analysis. Mineralogical and morphological changes in the structure of hardened composite were detected by XRD and SEM, respectively. Limestone aggregate led to lower final compressive strengths in mortar, but it produced an infinitesimally small shrinkage at 1000 degrees C. The hydrophobization via stearic acid initiated the decrease in water absorption and formation of needle-like micro-network that filled structural voids reducing open porosity. The assessment of the effects of limestone utilization as a filler and as an aggregate on the mortar performances confirmed that this novel water-repellent composite is applicable in structural design.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites",
pages = "73-61",
volume = "117",
doi = "10.1016/j.compositesb.2017.02.041",
url = "conv_794"
}
Terzić, A., Radulović, D., Pezo, L., Andrić, L., Milicić, L., Stojanović, J.,& Grigorova, I.. (2017). The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 117, 61-73.
https://doi.org/10.1016/j.compositesb.2017.02.041
conv_794
Terzić A, Radulović D, Pezo L, Andrić L, Milicić L, Stojanović J, Grigorova I. The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites. in Composites Part B-Engineering. 2017;117:61-73.
doi:10.1016/j.compositesb.2017.02.041
conv_794 .
Terzić, Anja, Radulović, Dragan, Pezo, Lato, Andrić, Ljubiša, Milicić, Ljiljana, Stojanović, Jovica, Grigorova, Irena, "The effect of mechano-chemical activation and surface treatment of limestone filler on the properties of construction composites" in Composites Part B-Engineering, 117 (2017):61-73,
https://doi.org/10.1016/j.compositesb.2017.02.041 .,
conv_794 .
11
9
12

Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings

Terzić, Anja; Andrić, Ljubiša; Radojević, Zagorka; Radulović, Dragan; Miličić, Ljiljana; Mijatović, Nevenka

(Belgrade . Serbian ceramic society and Institute of technical sciences of SASA), 2016)

TY  - CONF
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Radojević, Zagorka
AU  - Radulović, Dragan
AU  - Miličić, Ljiljana
AU  - Mijatović, Nevenka
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1032
AB  - Steatite is a magnesium silicate multi-componential composite that can be synthesized from natural raw materials, and eventually produced via standard ceramic processing methods and readily machined or sintered into a variety of forms. Due to its excellent electrical properties, high mechanical resistance, low dielectric loss and high temperature resistance, steatite is widely utilized as a material for thermal insulation and heath protection. The raw materials used in steatite powder synthesis are: talc mixture for calcination, clay minerals as bonding agent, and feldspar or BaCO3 as melting agents. The synthesis is usually conducted at approximately 1400°C, and its product is a crystalline phase of magnesium metasilicate (MgSiO3 ) obtained from talc, while melting agent forms a vitreous phase which melts and surrounds the crystalline phase. Steatite ceramics’ fillers were fabricated via combined method of high-energy ball milling, cold pressing and sintering. The powder blends containing same amounts of components in all 4 mixtures were dry-pulverized for 30 min a laboratory mill, with ceramic vial and ceramic balls. After milling, the powders were compacted to cylindrical tablets with a diameter of 25 mm by uniaxial compression at 4 tons/cm2 . The green compacts were sintered at 1000-1400°C (10°C/min) for 2 h in an air atmosphere. The effect of dry grinding on phase, microstructural and thermal properties of the sintered tablets were carried out by using X-ray diffraction technique (XRD), thermogravimetry/differential thermal analyzer (TG/DTA) and scanning electron microscope (SEM). The effects of grinding on the change of the particle diameter, crystallinity and the phase transformations, and reactivity of the powders were studied. The powders that were pulverized for 30 min showed properties which positively influenced on the decrease of sintering temperature and the increase of the sintering rate of steatite fillers.
PB  - Belgrade . Serbian ceramic society and Institute of technical sciences of SASA)
C3  - Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing”
T1  - Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings
ER  - 
@conference{
author = "Terzić, Anja and Andrić, Ljubiša and Radojević, Zagorka and Radulović, Dragan and Miličić, Ljiljana and Mijatović, Nevenka",
year = "2016",
abstract = "Steatite is a magnesium silicate multi-componential composite that can be synthesized from natural raw materials, and eventually produced via standard ceramic processing methods and readily machined or sintered into a variety of forms. Due to its excellent electrical properties, high mechanical resistance, low dielectric loss and high temperature resistance, steatite is widely utilized as a material for thermal insulation and heath protection. The raw materials used in steatite powder synthesis are: talc mixture for calcination, clay minerals as bonding agent, and feldspar or BaCO3 as melting agents. The synthesis is usually conducted at approximately 1400°C, and its product is a crystalline phase of magnesium metasilicate (MgSiO3 ) obtained from talc, while melting agent forms a vitreous phase which melts and surrounds the crystalline phase. Steatite ceramics’ fillers were fabricated via combined method of high-energy ball milling, cold pressing and sintering. The powder blends containing same amounts of components in all 4 mixtures were dry-pulverized for 30 min a laboratory mill, with ceramic vial and ceramic balls. After milling, the powders were compacted to cylindrical tablets with a diameter of 25 mm by uniaxial compression at 4 tons/cm2 . The green compacts were sintered at 1000-1400°C (10°C/min) for 2 h in an air atmosphere. The effect of dry grinding on phase, microstructural and thermal properties of the sintered tablets were carried out by using X-ray diffraction technique (XRD), thermogravimetry/differential thermal analyzer (TG/DTA) and scanning electron microscope (SEM). The effects of grinding on the change of the particle diameter, crystallinity and the phase transformations, and reactivity of the powders were studied. The powders that were pulverized for 30 min showed properties which positively influenced on the decrease of sintering temperature and the increase of the sintering rate of steatite fillers.",
publisher = "Belgrade . Serbian ceramic society and Institute of technical sciences of SASA)",
journal = "Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing”",
title = "Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings"
}
Terzić, A., Andrić, L., Radojević, Z., Radulović, D., Miličić, L.,& Mijatović, N.. (2016). Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings. in Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing”
Belgrade . Serbian ceramic society and Institute of technical sciences of SASA)..
Terzić A, Andrić L, Radojević Z, Radulović D, Miličić L, Mijatović N. Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings. in Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing”. 2016;..
Terzić, Anja, Andrić, Ljubiša, Radojević, Zagorka, Radulović, Dragan, Miličić, Ljiljana, Mijatović, Nevenka, "Characterization of microstructural and thermal properties of the steatite powders applied as fillers in the ceramic coatings" in Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing” (2016).

Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill

Andrić, Ljubiša; Terzić, Anja; Petrov, Milan; Stojanović, Jovica; Kostović, Milena

(Elsevier, Amsterdam, 2015)

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Petrov, Milan
AU  - Stojanović, Jovica
AU  - Kostović, Milena
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/336
AB  - The aim of this investigation was to establish the optimal processing parameters of the comminuted phosphate grain mixture mechanical treatment by monitoring and evaluating the activated product characteristics. An ultra-centrifugal mill with a peripheral comminuting path was used as activator in the experiment. A mathematical model based on the theoretical principles of the grain mixture mechanical processing was applied in order to characterize the phosphate activation procedure. As the energy conversion that takes place by the interaction mill-material during activation is recorded on the processed phosphate grains, the increase in potential energy of the activated grains was measured by means of an automatic grain counter. Following the operating hypothesis of the automatic grain counter, the energy conversion and the properties of phosphate grains induced by mechanical force were monitored and expressed in the form of the grain inertia change. The phosphate ore grain mixture used in the experiment was thoroughly analyzed, particularly in its activated state. Analytically obtained results were supported by X-ray diffraction analysis for identification of crystalline phases and change in crystallinity, and SEM microphotography of initial and activated phosphate grains. Diverse comparison analyses disclosed that the optimal set of activation process parameters could reduce the negative effect of phosphate sample immanent properties on the final score and furthermore enhance the material reactivity.
PB  - Elsevier, Amsterdam
T2  - International Journal of Mineral Processing
T1  - Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill
EP  - 11
SP  - 1
VL  - 143
DO  - 10.1016/j.minpro.2015.08.005
UR  - conv_741
ER  - 
@article{
author = "Andrić, Ljubiša and Terzić, Anja and Petrov, Milan and Stojanović, Jovica and Kostović, Milena",
year = "2015",
abstract = "The aim of this investigation was to establish the optimal processing parameters of the comminuted phosphate grain mixture mechanical treatment by monitoring and evaluating the activated product characteristics. An ultra-centrifugal mill with a peripheral comminuting path was used as activator in the experiment. A mathematical model based on the theoretical principles of the grain mixture mechanical processing was applied in order to characterize the phosphate activation procedure. As the energy conversion that takes place by the interaction mill-material during activation is recorded on the processed phosphate grains, the increase in potential energy of the activated grains was measured by means of an automatic grain counter. Following the operating hypothesis of the automatic grain counter, the energy conversion and the properties of phosphate grains induced by mechanical force were monitored and expressed in the form of the grain inertia change. The phosphate ore grain mixture used in the experiment was thoroughly analyzed, particularly in its activated state. Analytically obtained results were supported by X-ray diffraction analysis for identification of crystalline phases and change in crystallinity, and SEM microphotography of initial and activated phosphate grains. Diverse comparison analyses disclosed that the optimal set of activation process parameters could reduce the negative effect of phosphate sample immanent properties on the final score and furthermore enhance the material reactivity.",
publisher = "Elsevier, Amsterdam",
journal = "International Journal of Mineral Processing",
title = "Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill",
pages = "11-1",
volume = "143",
doi = "10.1016/j.minpro.2015.08.005",
url = "conv_741"
}
Andrić, L., Terzić, A., Petrov, M., Stojanović, J.,& Kostović, M.. (2015). Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill. in International Journal of Mineral Processing
Elsevier, Amsterdam., 143, 1-11.
https://doi.org/10.1016/j.minpro.2015.08.005
conv_741
Andrić L, Terzić A, Petrov M, Stojanović J, Kostović M. Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill. in International Journal of Mineral Processing. 2015;143:1-11.
doi:10.1016/j.minpro.2015.08.005
conv_741 .
Andrić, Ljubiša, Terzić, Anja, Petrov, Milan, Stojanović, Jovica, Kostović, Milena, "Energy conversion in phosphate ore grain mixture activated via ultra-centrifugal mill" in International Journal of Mineral Processing, 143 (2015):1-11,
https://doi.org/10.1016/j.minpro.2015.08.005 .,
conv_741 .
7
5
7

Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash

Terzić, Anja; Obradović, Nina; Andrić, Ljubiša; Stojanović, Jovica; Pavlović, Vladimir

(Springer, Dordrecht, 2015)

TY  - JOUR
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Andrić, Ljubiša
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/370
AB  - The effects that the fly ash addition has on the behavior of thermally resistant corundum concrete were discussed. Experimental program implied production of two refractory composites: "referent" concrete from 20 % of high-aluminate cement and 80 % of corundum aggregate, "recycled" concrete from 10 % of high-aluminate cement, 20 % of lignite coal ash, and 70 % of corundum aggregate. The fly ash was mechanically activated by a vibratory disk mill. In the concrete matrix, the ash had a role of cement partial replacement and microfiller. The mechanical and thermal properties of the concretes were studied at temperatures ranging from ambient to 1,400 A degrees C as adopted maximum. Mechanisms of thermally induced processes were observed by differential thermal analysis at 10, 20, and 30 A degrees C min(-1) heating rates. Referent and recycled concretes showed differences in calculated activation energies. The variations in refractory concretes performances were discussed with support of scanning electron microscope imagining and X-ray diffraction results. The recycled ash concrete exhibited properties that met the requirements for the castables, which proves it suitable for use in severe conditions at high temperature and highlights the reusing principle and possibility of cleaner and economically sustainable production.
PB  - Springer, Dordrecht
T2  - Journal of Thermal Analysis and Calorimetry
T1  - Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash
EP  - 1352
IS  - 2
SP  - 1339
VL  - 119
DO  - 10.1007/s10973-014-4230-4
UR  - conv_718
ER  - 
@article{
author = "Terzić, Anja and Obradović, Nina and Andrić, Ljubiša and Stojanović, Jovica and Pavlović, Vladimir",
year = "2015",
abstract = "The effects that the fly ash addition has on the behavior of thermally resistant corundum concrete were discussed. Experimental program implied production of two refractory composites: "referent" concrete from 20 % of high-aluminate cement and 80 % of corundum aggregate, "recycled" concrete from 10 % of high-aluminate cement, 20 % of lignite coal ash, and 70 % of corundum aggregate. The fly ash was mechanically activated by a vibratory disk mill. In the concrete matrix, the ash had a role of cement partial replacement and microfiller. The mechanical and thermal properties of the concretes were studied at temperatures ranging from ambient to 1,400 A degrees C as adopted maximum. Mechanisms of thermally induced processes were observed by differential thermal analysis at 10, 20, and 30 A degrees C min(-1) heating rates. Referent and recycled concretes showed differences in calculated activation energies. The variations in refractory concretes performances were discussed with support of scanning electron microscope imagining and X-ray diffraction results. The recycled ash concrete exhibited properties that met the requirements for the castables, which proves it suitable for use in severe conditions at high temperature and highlights the reusing principle and possibility of cleaner and economically sustainable production.",
publisher = "Springer, Dordrecht",
journal = "Journal of Thermal Analysis and Calorimetry",
title = "Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash",
pages = "1352-1339",
number = "2",
volume = "119",
doi = "10.1007/s10973-014-4230-4",
url = "conv_718"
}
Terzić, A., Obradović, N., Andrić, L., Stojanović, J.,& Pavlović, V.. (2015). Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash. in Journal of Thermal Analysis and Calorimetry
Springer, Dordrecht., 119(2), 1339-1352.
https://doi.org/10.1007/s10973-014-4230-4
conv_718
Terzić A, Obradović N, Andrić L, Stojanović J, Pavlović V. Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash. in Journal of Thermal Analysis and Calorimetry. 2015;119(2):1339-1352.
doi:10.1007/s10973-014-4230-4
conv_718 .
Terzić, Anja, Obradović, Nina, Andrić, Ljubiša, Stojanović, Jovica, Pavlović, Vladimir, "Investigation of thermally induced processes in corundum refractory concretes with addition of fly ash" in Journal of Thermal Analysis and Calorimetry, 119, no. 2 (2015):1339-1352,
https://doi.org/10.1007/s10973-014-4230-4 .,
conv_718 .
7
5
8

Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics

Terzić, Anja; Andrić, Ljubiša; Stojanović, Jovica; Obradović, Nina; Kostović, M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2014)

TY  - JOUR
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Stojanović, Jovica
AU  - Obradović, Nina
AU  - Kostović, M.
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/320
AB  - The effect of vibratory mill induced mechanical activation on the change of the particle size, crystallinity and the phase transformations of the minerals present in the activated material, was studied with the purpose of decreasing of the sintering temperature of talc (Mg3Si4O10(OH)(2)) as raw material which is the basic component of the steatite ceramics. The aims of the conducted investigation were, also, increasing of the reactivity of the comminuted raw material and establishing of the optimal activation period. The properties of the activated talc induced by mechanical force were expressed in form of the grain inertia change which was measured by means of automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change of the mill-material system is recorded on them. The effect of dry grinding on the structure, particle size and shape of talc was studied by means of XRD, DTA and SEM/EDS methods. Activation of talc produced an increase of the starting surface area value progressively from 4.5 m(2)/g up to a maximum of 108.5 m(2)/g achieved at 30 min. A subsequent decrease of rate of surface area change and the rate of size reduction were observed following the prolonged grinding. Talc activated in vibratory mill for optimal 30 min showed properties which positively influence the decrease of sintering temperature and the increase of the sintering rate of steatite ceramics.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics
EP  - 258
IS  - 2
SP  - 247
VL  - 46
DO  - 10.2298/SOS1402247T
UR  - conv_706
ER  - 
@article{
author = "Terzić, Anja and Andrić, Ljubiša and Stojanović, Jovica and Obradović, Nina and Kostović, M.",
year = "2014",
abstract = "The effect of vibratory mill induced mechanical activation on the change of the particle size, crystallinity and the phase transformations of the minerals present in the activated material, was studied with the purpose of decreasing of the sintering temperature of talc (Mg3Si4O10(OH)(2)) as raw material which is the basic component of the steatite ceramics. The aims of the conducted investigation were, also, increasing of the reactivity of the comminuted raw material and establishing of the optimal activation period. The properties of the activated talc induced by mechanical force were expressed in form of the grain inertia change which was measured by means of automatic grain counter. Mechanically activated grains are the most convenient mineral form for physical concentration since the energy change of the mill-material system is recorded on them. The effect of dry grinding on the structure, particle size and shape of talc was studied by means of XRD, DTA and SEM/EDS methods. Activation of talc produced an increase of the starting surface area value progressively from 4.5 m(2)/g up to a maximum of 108.5 m(2)/g achieved at 30 min. A subsequent decrease of rate of surface area change and the rate of size reduction were observed following the prolonged grinding. Talc activated in vibratory mill for optimal 30 min showed properties which positively influence the decrease of sintering temperature and the increase of the sintering rate of steatite ceramics.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics",
pages = "258-247",
number = "2",
volume = "46",
doi = "10.2298/SOS1402247T",
url = "conv_706"
}
Terzić, A., Andrić, L., Stojanović, J., Obradović, N.,& Kostović, M.. (2014). Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 46(2), 247-258.
https://doi.org/10.2298/SOS1402247T
conv_706
Terzić A, Andrić L, Stojanović J, Obradović N, Kostović M. Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics. in Science of Sintering. 2014;46(2):247-258.
doi:10.2298/SOS1402247T
conv_706 .
Terzić, Anja, Andrić, Ljubiša, Stojanović, Jovica, Obradović, Nina, Kostović, M., "Mechanical Activation as Sintering Pre-treatment of Talc for Steatite Ceramics" in Science of Sintering, 46, no. 2 (2014):247-258,
https://doi.org/10.2298/SOS1402247T .,
conv_706 .
8
6
11

Natural, modified and saturated zeolites as additives in Portland cement

Sekulić, Živko; Kragović, Milan; Kolonja, Božo M.; Terzić, Anja; Mihajlović, Slavica

(Bauverlag BV GmbH, 2014)

TY  - JOUR
AU  - Sekulić, Živko
AU  - Kragović, Milan
AU  - Kolonja, Božo M.
AU  - Terzić, Anja
AU  - Mihajlović, Slavica
PY  - 2014
UR  - https://ritnms.itnms.ac.rs/handle/123456789/291
PB  - Bauverlag BV GmbH
T2  - ZKG International
T1  - Natural, modified and saturated zeolites as additives in Portland cement
EP  - 56
IS  - 12
SP  - 49
VL  - 67
UR  - https://hdl.handle.net/21.15107/rcub_rims_249
UR  - conv_1047
ER  - 
@article{
author = "Sekulić, Živko and Kragović, Milan and Kolonja, Božo M. and Terzić, Anja and Mihajlović, Slavica",
year = "2014",
publisher = "Bauverlag BV GmbH",
journal = "ZKG International",
title = "Natural, modified and saturated zeolites as additives in Portland cement",
pages = "56-49",
number = "12",
volume = "67",
url = "https://hdl.handle.net/21.15107/rcub_rims_249, conv_1047"
}
Sekulić, Ž., Kragović, M., Kolonja, B. M., Terzić, A.,& Mihajlović, S.. (2014). Natural, modified and saturated zeolites as additives in Portland cement. in ZKG International
Bauverlag BV GmbH., 67(12), 49-56.
https://hdl.handle.net/21.15107/rcub_rims_249
Sekulić Ž, Kragović M, Kolonja BM, Terzić A, Mihajlović S. Natural, modified and saturated zeolites as additives in Portland cement. in ZKG International. 2014;67(12):49-56.
https://hdl.handle.net/21.15107/rcub_rims_249 .
Sekulić, Živko, Kragović, Milan, Kolonja, Božo M., Terzić, Anja, Mihajlović, Slavica, "Natural, modified and saturated zeolites as additives in Portland cement" in ZKG International, 67, no. 12 (2014):49-56,
https://hdl.handle.net/21.15107/rcub_rims_249 .
1
1

High-temperature concrete binders based on fly ash

Terzić, Anja; Radojević, Zagorka; Milicić, Ljiljana; Pavlović, Ljubica; Stojanović, Jovica

(2013)

TY  - JOUR
AU  - Terzić, Anja
AU  - Radojević, Zagorka
AU  - Milicić, Ljiljana
AU  - Pavlović, Ljubica
AU  - Stojanović, Jovica
PY  - 2013
UR  - https://ritnms.itnms.ac.rs/handle/123456789/280
AB  - High-temperature concrete binders in which fly ash, as environmentally harmful secondary raw material, is combined with masonry and refractory cement is a new option for reapplication of this coal combustion by-product. In this study, the design of the bonding agents was based on the fly ash from lignite coal combustion process and two types of cement: Portland cement and aluminate cement. Fly ash was applied without any further mechanical or thermal treatment. Mechanical properties of the binders were investigated and subsequently correlated with changes which occurred in the phase composition and microstructure of the agents. Scanning electron microscopy was used in investigation of microstructural changes caused by temperature. X-ray diffraction method was used in monitoring of the mineral phase changes also induced by increasing temperature. The investigations conducted on the bonding agents highlighted presence of good refractory properties and temperature-resistance, and also showed high values of compressive strength. The investigated bonding agents, thus, can be applied in refractory concretes, but also in various types of thermo-insulations.
T2  - Revista Romana de Materiale/ Romanian Journal of Materials
T1  - High-temperature concrete binders based on fly ash
EP  - 275
IS  - 3
SP  - 269
VL  - 43
UR  - https://hdl.handle.net/21.15107/rcub_rims_203
UR  - conv_1056
ER  - 
@article{
author = "Terzić, Anja and Radojević, Zagorka and Milicić, Ljiljana and Pavlović, Ljubica and Stojanović, Jovica",
year = "2013",
abstract = "High-temperature concrete binders in which fly ash, as environmentally harmful secondary raw material, is combined with masonry and refractory cement is a new option for reapplication of this coal combustion by-product. In this study, the design of the bonding agents was based on the fly ash from lignite coal combustion process and two types of cement: Portland cement and aluminate cement. Fly ash was applied without any further mechanical or thermal treatment. Mechanical properties of the binders were investigated and subsequently correlated with changes which occurred in the phase composition and microstructure of the agents. Scanning electron microscopy was used in investigation of microstructural changes caused by temperature. X-ray diffraction method was used in monitoring of the mineral phase changes also induced by increasing temperature. The investigations conducted on the bonding agents highlighted presence of good refractory properties and temperature-resistance, and also showed high values of compressive strength. The investigated bonding agents, thus, can be applied in refractory concretes, but also in various types of thermo-insulations.",
journal = "Revista Romana de Materiale/ Romanian Journal of Materials",
title = "High-temperature concrete binders based on fly ash",
pages = "275-269",
number = "3",
volume = "43",
url = "https://hdl.handle.net/21.15107/rcub_rims_203, conv_1056"
}
Terzić, A., Radojević, Z., Milicić, L., Pavlović, L.,& Stojanović, J.. (2013). High-temperature concrete binders based on fly ash. in Revista Romana de Materiale/ Romanian Journal of Materials, 43(3), 269-275.
https://hdl.handle.net/21.15107/rcub_rims_203
Terzić A, Radojević Z, Milicić L, Pavlović L, Stojanović J. High-temperature concrete binders based on fly ash. in Revista Romana de Materiale/ Romanian Journal of Materials. 2013;43(3):269-275.
https://hdl.handle.net/21.15107/rcub_rims_203 .
Terzić, Anja, Radojević, Zagorka, Milicić, Ljiljana, Pavlović, Ljubica, Stojanović, Jovica, "High-temperature concrete binders based on fly ash" in Revista Romana de Materiale/ Romanian Journal of Materials, 43, no. 3 (2013):269-275,
https://hdl.handle.net/21.15107/rcub_rims_203 .
3
3

Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja

Prstić, Aurel; Aćimović-Pavlović, Zagorka; Andrić, Ljubiša; Stojanović, Jovica; Terzić, Anja

(Savez hemijskih inženjera, Beograd, 2012)

TY  - JOUR
AU  - Prstić, Aurel
AU  - Aćimović-Pavlović, Zagorka
AU  - Andrić, Ljubiša
AU  - Stojanović, Jovica
AU  - Terzić, Anja
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/218
AB  - U ovom radu je istraživana mogućnost dobijanja novih vatrostalnih premaza na bazi cirkona koji bi imali primenu u livarstvu. Optimizacija sastava premaza kontrolisana reološkim svojstvima postignuta je primenom različitih komponenata premaza, naročito primenom novog veziva na bazi suspenzije i variranjem načina spravljanja premaza. Čestice cirkonskoh praha veličine 25×10-6 m su korišćene kao ispuna. Uzorak cirkona ispitivan je pomoću sledećih metoda: difrakcija X-zraka, diferencijalna termalna analiza i mikroskopija. Oblik i veličina zrna su analizirani pomoću računarskog programa za analizu slike OZARIA 2.5. Pokazano je da primena ovih premaza na bazi vode i alkohola ima pozitivan uticaj na kvalitet površine, tj. na strukturne i mehaničke karakteristike odlivaka livenog gvožđa koji su dobijeni metodom livenja u peščane kalupe i pomoću isparljivih modela (Lost Foam metoda livenja).
AB  - In this work, a possibility to develop a new zircon-based refractory coating for casting applications was investigated. Optimization of the coating composition with controlled rheological properties was attained by application of different coating components, particularly by application of a new suspension agent and by alteration of coating production procedure. Zircon powder with particle size of 25×10-6 m was used as filler. The zircon sample was investigated by means of X-ray diffraction analysis, diffraction thermal analysis and polarized microscopy. The shape and grain size were analyzed using OZARIA 2.5 software. It was shown that application of this type of water-alcohol-based coating had a positive influence on surface quality, structural and mechanical properties of the castings of cast iron obtained by pouring into sand molds by means of the expandable patterns method (Lost Foam casting process).
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja
T1  - Zircon-based coating for the applications in Lost Foam casting process
EP  - 593
IS  - 4-1
SP  - 587
VL  - 18
DO  - 10.2298/CICEQ111122034P
UR  - conv_389
ER  - 
@article{
author = "Prstić, Aurel and Aćimović-Pavlović, Zagorka and Andrić, Ljubiša and Stojanović, Jovica and Terzić, Anja",
year = "2012",
abstract = "U ovom radu je istraživana mogućnost dobijanja novih vatrostalnih premaza na bazi cirkona koji bi imali primenu u livarstvu. Optimizacija sastava premaza kontrolisana reološkim svojstvima postignuta je primenom različitih komponenata premaza, naročito primenom novog veziva na bazi suspenzije i variranjem načina spravljanja premaza. Čestice cirkonskoh praha veličine 25×10-6 m su korišćene kao ispuna. Uzorak cirkona ispitivan je pomoću sledećih metoda: difrakcija X-zraka, diferencijalna termalna analiza i mikroskopija. Oblik i veličina zrna su analizirani pomoću računarskog programa za analizu slike OZARIA 2.5. Pokazano je da primena ovih premaza na bazi vode i alkohola ima pozitivan uticaj na kvalitet površine, tj. na strukturne i mehaničke karakteristike odlivaka livenog gvožđa koji su dobijeni metodom livenja u peščane kalupe i pomoću isparljivih modela (Lost Foam metoda livenja)., In this work, a possibility to develop a new zircon-based refractory coating for casting applications was investigated. Optimization of the coating composition with controlled rheological properties was attained by application of different coating components, particularly by application of a new suspension agent and by alteration of coating production procedure. Zircon powder with particle size of 25×10-6 m was used as filler. The zircon sample was investigated by means of X-ray diffraction analysis, diffraction thermal analysis and polarized microscopy. The shape and grain size were analyzed using OZARIA 2.5 software. It was shown that application of this type of water-alcohol-based coating had a positive influence on surface quality, structural and mechanical properties of the castings of cast iron obtained by pouring into sand molds by means of the expandable patterns method (Lost Foam casting process).",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja, Zircon-based coating for the applications in Lost Foam casting process",
pages = "593-587",
number = "4-1",
volume = "18",
doi = "10.2298/CICEQ111122034P",
url = "conv_389"
}
Prstić, A., Aćimović-Pavlović, Z., Andrić, L., Stojanović, J.,& Terzić, A.. (2012). Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 18(4-1), 587-593.
https://doi.org/10.2298/CICEQ111122034P
conv_389
Prstić A, Aćimović-Pavlović Z, Andrić L, Stojanović J, Terzić A. Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2012;18(4-1):587-593.
doi:10.2298/CICEQ111122034P
conv_389 .
Prstić, Aurel, Aćimović-Pavlović, Zagorka, Andrić, Ljubiša, Stojanović, Jovica, Terzić, Anja, "Premazi na bazi cirkona sa primenom u Lost Foam procesu livenja" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18, no. 4-1 (2012):587-593,
https://doi.org/10.2298/CICEQ111122034P .,
conv_389 .
4
1
9

Synthesis and sintering of high-temperature composites based on mechanically activated fly ash

Terzić, Anja; Pavlović, Ljubica; Obradović, Nina; Pavlović, Vladimir; Stojanović, Jovica; Milicić, Ljiljana; Radojević, Zagorka; Ristić, M.M.

(Međunarodni Institut za nauku o sinterovanju, Beograd, 2012)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
AU  - Obradović, Nina
AU  - Pavlović, Vladimir
AU  - Stojanović, Jovica
AU  - Milicić, Ljiljana
AU  - Radojević, Zagorka
AU  - Ristić, M.M.
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/226
AB  - Količina letećeg pepela koji se proizvodi i koja će biti proizvedena u godinama koje dolaze zahteva razvoj novih metoda recikliranja u kojima će biti upotrebljene značajne količine ovog otpadnog materijala. Mogućnost visoko-temperaturne aplikacije (termoizolacioni i vatrostalni materijali) ukazuje na novu mogućnost za primenu letećeg pepela. Za takvu primenu leteći pepeo mora da zadovolji visoke mehaničke i termičke kriterijume. Jedan od načina da se to postigne je mehanička aktivacija letećeg pepela. U ovom radu prikazani su rezultati mehaničke aktivacije pepela iz dve različite termo-elektrane pomoću planetarnog mlina. Aktivirani pepeli su mešani sa dva veziva: portland cementom i visoko-aluminatnim cementom. Akcenat je na analizi fizičko-hemijskih svojstava i mineroloških faza zbog promena koje se dešavaju u kompozitima usled mehaničke aktivacije pepela i sinterovanja. Makro svojstva kompozita su povezana sa mikrostrukturom ispitivanom pomoću SEM analize i Rendgenske difrakcije. Termijska stabilnost kristalnih faza ispitivana je pomoću DTA. Akcenat je na utvrđivanju korelacija između mehaničke aktivacije letećeg pepela i mikrostrukture kompozita na jednoj i svojstava sinterovanog kompozita na drugoj strani.
AB  - Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side.
PB  - Međunarodni Institut za nauku o sinterovanju, Beograd
T2  - Science of Sintering
T1  - Synthesis and sintering of high-temperature composites based on mechanically activated fly ash
EP  - 146
IS  - 2
SP  - 135
VL  - 44
DO  - 10.2298/SOS1202135T
UR  - conv_654
ER  - 
@article{
author = "Terzić, Anja and Pavlović, Ljubica and Obradović, Nina and Pavlović, Vladimir and Stojanović, Jovica and Milicić, Ljiljana and Radojević, Zagorka and Ristić, M.M.",
year = "2012",
abstract = "Količina letećeg pepela koji se proizvodi i koja će biti proizvedena u godinama koje dolaze zahteva razvoj novih metoda recikliranja u kojima će biti upotrebljene značajne količine ovog otpadnog materijala. Mogućnost visoko-temperaturne aplikacije (termoizolacioni i vatrostalni materijali) ukazuje na novu mogućnost za primenu letećeg pepela. Za takvu primenu leteći pepeo mora da zadovolji visoke mehaničke i termičke kriterijume. Jedan od načina da se to postigne je mehanička aktivacija letećeg pepela. U ovom radu prikazani su rezultati mehaničke aktivacije pepela iz dve različite termo-elektrane pomoću planetarnog mlina. Aktivirani pepeli su mešani sa dva veziva: portland cementom i visoko-aluminatnim cementom. Akcenat je na analizi fizičko-hemijskih svojstava i mineroloških faza zbog promena koje se dešavaju u kompozitima usled mehaničke aktivacije pepela i sinterovanja. Makro svojstva kompozita su povezana sa mikrostrukturom ispitivanom pomoću SEM analize i Rendgenske difrakcije. Termijska stabilnost kristalnih faza ispitivana je pomoću DTA. Akcenat je na utvrđivanju korelacija između mehaničke aktivacije letećeg pepela i mikrostrukture kompozita na jednoj i svojstava sinterovanog kompozita na drugoj strani., Amount of fly ash which is and yet to be generated in the coming years highlights the necessity of developing new methods of the recycling where this waste can be reused in significant quantity. A new possibility for fly ash utilization is in high-temperature application (thermal insulators or/and refractory material products). As such, fly ash has to adequately answer the mechanical and thermal stability criteria. One of the ways of achieving it is by applying mechanical activation procedure on fly ash. In present study, fly ashes from two different power plants were mechanically activated in a planetary ball mill. Mechanically treated fly ashes were cemented with two different binders: standard Portland cement and high-aluminates cement. Physico-chemical analysis and investigation of mineralogical components of composites are emphasized, due to the changes occurred in fly ash during mechanical activation and sintering of composites. Macro-performance of the composites was correlated to the microstructure of fly ash studied by means of XRD and SEM analysis. Thermal stability of crystalline phases was investigated with DTA. Highlight was placed on determination of relationship between mechanically activated fly ash and obtained composites microstructure on one side and behavior of sintered composites on the other side.",
publisher = "Međunarodni Institut za nauku o sinterovanju, Beograd",
journal = "Science of Sintering",
title = "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash",
pages = "146-135",
number = "2",
volume = "44",
doi = "10.2298/SOS1202135T",
url = "conv_654"
}
Terzić, A., Pavlović, L., Obradović, N., Pavlović, V., Stojanović, J., Milicić, L., Radojević, Z.,& Ristić, M.M.. (2012). Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering
Međunarodni Institut za nauku o sinterovanju, Beograd., 44(2), 135-146.
https://doi.org/10.2298/SOS1202135T
conv_654
Terzić A, Pavlović L, Obradović N, Pavlović V, Stojanović J, Milicić L, Radojević Z, Ristić M. Synthesis and sintering of high-temperature composites based on mechanically activated fly ash. in Science of Sintering. 2012;44(2):135-146.
doi:10.2298/SOS1202135T
conv_654 .
Terzić, Anja, Pavlović, Ljubica, Obradović, Nina, Pavlović, Vladimir, Stojanović, Jovica, Milicić, Ljiljana, Radojević, Zagorka, Ristić, M.M., "Synthesis and sintering of high-temperature composites based on mechanically activated fly ash" in Science of Sintering, 44, no. 2 (2012):135-146,
https://doi.org/10.2298/SOS1202135T .,
conv_654 .
10
11
15

Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala

Terzić, Anja; Pavlović, Ljubica; Stojanović, Jovica; Radojević, Zagorka

(Univerzitet u Nišu, Niš, 2012)

TY  - JOUR
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
AU  - Stojanović, Jovica
AU  - Radojević, Zagorka
PY  - 2012
UR  - https://ritnms.itnms.ac.rs/handle/123456789/224
AB  - Konstrukcioni kompoziti - termo-izolaciona i/ili visoko-temperaturna veziva u kojima je leteći pepeo, kao potencijalno štetna materija za okolinu, kombinovan sa običnim i vatrostalnim cementom predstavlja jednu sasvim novu mogućnost za reaplikaciju ovog otpadnog materijala. U ovoj studiji, ispitivana su veziva spravljena na bazi dve vrste letećeg pepela dobijenog procesom sagorevanja uglja i dve vrste cementa - obični Portland cement i visoko-aluminatni cement. Promena u mineralnom sastavu kompozita uslovljena povećanjem temperature je analizirana pomoću XRD metode. Mikrostrukturne promene ispitivanih kompozita su utvrđene na osnovu rezultata skening-elektronske mikroskopije (SEM). Makro performanse - mehanička svojstva ispitivanih veziva su povezana sa promenama koje se dešavaju u mikrostrukturi materijala. Ispitivana veziva imaju odlične vrednosti pritisne čvrsoće, a SEM i XRD analiza je ukazala i na potencijalno dobra termo-izolaciona i vatrostalna svojstva ovih materijala.
AB  - Building composites - thermo-insulating and/or high-temperature resistant bonding agents in which fly ash, as potentially environmentally harmful waste material, is combined with ordinary and refractory cement is new option for reapplication of this waste material. In this study, investigated bonding agents were based on two types of fly ashes from coal combustion process and cements - ordinary Portland cement and highaluminate cement. Change of mineral phase composition of the composites with increasing temperature was analyzed by means of XRD method. Microstructural changes within investigated composites were investigated by means of scanning electron microscopy (SEM). Macro-performance - mechanical properties of the investigated bonding agents was finally correlated with its microstructure. The investigated bonding agents showed excellent compressive strength, while SEM and XRD analysis indicated its valuable refractory and thermo-insulation properties.
PB  - Univerzitet u Nišu, Niš
T2  - Facta universitatis - series: Architecture and Civil Engineering
T1  - Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala
T1  - Correlation between microstructure, phase composition and mechanical properties of thermo-insulation bonding agents based on waste material
EP  - 258
IS  - 3
SP  - 245
VL  - 10
DO  - 10.2298/FUACE1203245T
UR  - conv_261
ER  - 
@article{
author = "Terzić, Anja and Pavlović, Ljubica and Stojanović, Jovica and Radojević, Zagorka",
year = "2012",
abstract = "Konstrukcioni kompoziti - termo-izolaciona i/ili visoko-temperaturna veziva u kojima je leteći pepeo, kao potencijalno štetna materija za okolinu, kombinovan sa običnim i vatrostalnim cementom predstavlja jednu sasvim novu mogućnost za reaplikaciju ovog otpadnog materijala. U ovoj studiji, ispitivana su veziva spravljena na bazi dve vrste letećeg pepela dobijenog procesom sagorevanja uglja i dve vrste cementa - obični Portland cement i visoko-aluminatni cement. Promena u mineralnom sastavu kompozita uslovljena povećanjem temperature je analizirana pomoću XRD metode. Mikrostrukturne promene ispitivanih kompozita su utvrđene na osnovu rezultata skening-elektronske mikroskopije (SEM). Makro performanse - mehanička svojstva ispitivanih veziva su povezana sa promenama koje se dešavaju u mikrostrukturi materijala. Ispitivana veziva imaju odlične vrednosti pritisne čvrsoće, a SEM i XRD analiza je ukazala i na potencijalno dobra termo-izolaciona i vatrostalna svojstva ovih materijala., Building composites - thermo-insulating and/or high-temperature resistant bonding agents in which fly ash, as potentially environmentally harmful waste material, is combined with ordinary and refractory cement is new option for reapplication of this waste material. In this study, investigated bonding agents were based on two types of fly ashes from coal combustion process and cements - ordinary Portland cement and highaluminate cement. Change of mineral phase composition of the composites with increasing temperature was analyzed by means of XRD method. Microstructural changes within investigated composites were investigated by means of scanning electron microscopy (SEM). Macro-performance - mechanical properties of the investigated bonding agents was finally correlated with its microstructure. The investigated bonding agents showed excellent compressive strength, while SEM and XRD analysis indicated its valuable refractory and thermo-insulation properties.",
publisher = "Univerzitet u Nišu, Niš",
journal = "Facta universitatis - series: Architecture and Civil Engineering",
title = "Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala, Correlation between microstructure, phase composition and mechanical properties of thermo-insulation bonding agents based on waste material",
pages = "258-245",
number = "3",
volume = "10",
doi = "10.2298/FUACE1203245T",
url = "conv_261"
}
Terzić, A., Pavlović, L., Stojanović, J.,& Radojević, Z.. (2012). Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala. in Facta universitatis - series: Architecture and Civil Engineering
Univerzitet u Nišu, Niš., 10(3), 245-258.
https://doi.org/10.2298/FUACE1203245T
conv_261
Terzić A, Pavlović L, Stojanović J, Radojević Z. Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala. in Facta universitatis - series: Architecture and Civil Engineering. 2012;10(3):245-258.
doi:10.2298/FUACE1203245T
conv_261 .
Terzić, Anja, Pavlović, Ljubica, Stojanović, Jovica, Radojević, Zagorka, "Veza između mikrostrukture, faznog sastava i mehaničkih svojstava termo-izolacionih veziva na bazi otpadnog materijala" in Facta universitatis - series: Architecture and Civil Engineering, 10, no. 3 (2012):245-258,
https://doi.org/10.2298/FUACE1203245T .,
conv_261 .

Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji

Radulović, Dragan; Terzić, Anja; Pavlović, Ljubica; Antanasković, Velimir

(Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd, 2006)

TY  - JOUR
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Pavlović, Ljubica
AU  - Antanasković, Velimir
PY  - 2006
UR  - https://ritnms.itnms.ac.rs/handle/123456789/107
AB  - U ovom radu prikazani su rezultati ispitivanja revitalizacije sekundarnog, otpadnog gipsa i ispitivanje mogućnosti da se revitalizovanom gipsu nađe adekvatna primena kako u domenu keramičke industrije, tako i u oblasti građevinarstva. Gips koji koristi 'Industrija keramike - Mladenovac' za pravljenje kalupa je poluhidrat i veoma je fin kako u pogledu krupnoće tako i u pogledu sadržaja korisne komponente. Međutim, posle upotrebe kalupa u procesu pravljenja sanitarnih proizvoda ovaj gips sada u obliku dihidrata postaje neupotrebljiv. Pošto se gips za kalupe uvozi, osvajanjem ove tehnologije bi se isti gips mogao koristiti ponovo i na taj način bi se mogao supstituisati uvoz ove komponente. Primena revitalizovanog sekundarnog gipsa značajna je kako sa ekonomskog tako i sa ekološkog aspekta.
AB  - In this work tests results are presented of secondary refuse gypsum revitalization and tests of the possibility to find an adequate application for the revitalized gypsum, as in the domain of the ceramics industry so as well in the domain of civil engineering. Gypsum used in 'Ceramics Industry - Mladenovac' for the production of moulds is semihydrate, very fine, as concerning the thickness so as well with regard to the contents of a useful component. Meanwhile, after the use of moulds in the proceeding of fabrication of the sanitary products, this gypsum, now in the form of hydrate, becomes unusable. As gypsum for moulds is being imported, conquering this technology the same gypsum could be used again, and so the import of this component could be substituted. The application of the revitalized secondary gypsum is important as from the economic aspect, so as well from the ecologic one.
PB  - Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd
T2  - Izgradnja
T1  - Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji
T1  - Possibility of refuse gypsum revalorization in ceramics industry in civil engineering and in ceramics industry
EP  - 258
IS  - 9-10
SP  - 252
VL  - 60
UR  - conv_94
ER  - 
@article{
author = "Radulović, Dragan and Terzić, Anja and Pavlović, Ljubica and Antanasković, Velimir",
year = "2006",
abstract = "U ovom radu prikazani su rezultati ispitivanja revitalizacije sekundarnog, otpadnog gipsa i ispitivanje mogućnosti da se revitalizovanom gipsu nađe adekvatna primena kako u domenu keramičke industrije, tako i u oblasti građevinarstva. Gips koji koristi 'Industrija keramike - Mladenovac' za pravljenje kalupa je poluhidrat i veoma je fin kako u pogledu krupnoće tako i u pogledu sadržaja korisne komponente. Međutim, posle upotrebe kalupa u procesu pravljenja sanitarnih proizvoda ovaj gips sada u obliku dihidrata postaje neupotrebljiv. Pošto se gips za kalupe uvozi, osvajanjem ove tehnologije bi se isti gips mogao koristiti ponovo i na taj način bi se mogao supstituisati uvoz ove komponente. Primena revitalizovanog sekundarnog gipsa značajna je kako sa ekonomskog tako i sa ekološkog aspekta., In this work tests results are presented of secondary refuse gypsum revitalization and tests of the possibility to find an adequate application for the revitalized gypsum, as in the domain of the ceramics industry so as well in the domain of civil engineering. Gypsum used in 'Ceramics Industry - Mladenovac' for the production of moulds is semihydrate, very fine, as concerning the thickness so as well with regard to the contents of a useful component. Meanwhile, after the use of moulds in the proceeding of fabrication of the sanitary products, this gypsum, now in the form of hydrate, becomes unusable. As gypsum for moulds is being imported, conquering this technology the same gypsum could be used again, and so the import of this component could be substituted. The application of the revitalized secondary gypsum is important as from the economic aspect, so as well from the ecologic one.",
publisher = "Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd",
journal = "Izgradnja",
title = "Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji, Possibility of refuse gypsum revalorization in ceramics industry in civil engineering and in ceramics industry",
pages = "258-252",
number = "9-10",
volume = "60",
url = "conv_94"
}
Radulović, D., Terzić, A., Pavlović, L.,& Antanasković, V.. (2006). Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji. in Izgradnja
Udruženje inženjera građevinarstva, geotehnike, arhitekture i urbanista "Izgradnja", Beograd., 60(9-10), 252-258.
conv_94
Radulović D, Terzić A, Pavlović L, Antanasković V. Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji. in Izgradnja. 2006;60(9-10):252-258.
conv_94 .
Radulović, Dragan, Terzić, Anja, Pavlović, Ljubica, Antanasković, Velimir, "Mogućnost revalorizacije otpadnog gipsa u keramičkoj industriji u građevinarstvu i keramičkoj industriji" in Izgradnja, 60, no. 9-10 (2006):252-258,
conv_94 .