TY  - JOUR
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Stojanović, Jovica
AU  - Jovanović, Vladimir
AU  - Todorović, Dejan
AU  - Ivošević, Branislav
PY  - 2024
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1227
AB  - Smelting used to be less efficient; therefore, wastes obtained from historical processing at smelter plants usually contain certain quantities of valuable metals. Upon the extraction of useful metal elements, metallurgical slag can be repurposed as an alternative mineral raw material in the building sector. A case study was conducted, which included an investigation of the physico-chemical, mineralogical, and microstructural properties of Pb–Zn slag found at the historic landfill near the Topilnica Veles smelter in North Macedonia. The slag was sampled using drill holes. The mineralogical and microstructural analysis revealed that Pb–Zn slag is a very complex and inhomogeneous alternative raw material with utilizable levels of metals, specifically Pb (2.3 wt.%), Zn (7.1 wt.%), and Ag (27.5 ppm). Crystalline mineral phases of wurtzite, sphalerite, galena, cerussite, akermanite, wüstite, monticellite, franklinite, and zincite were identified in the analyzed samples. The slag’s matrix consisted of alumino-silicates, amorphous silicates, and mixtures of spinel and silicates. Due to the economic potential of Pb, Zn, and Ag extraction, the first stage of reutilization will be to transform metal concentrates into their collective concentrate, from which the maximum amount of these crucial components can be extracted. This procedure will include combination of gravity concentration and separation techniques. The next step is to assess the Pb–Zn slag’s potential applications in civil engineering, based on its mineralogical and physico-mechanical properties. Alumino-silicates present in Pb–Zn slag, which contain high concentrations of SiO2, Al2O3, CaO, and Fe2O3, are suitable for use in cementitious building composites. The goal of this research is to suggest a solution by which to close the circle of slag’s reutilization in terms of zero waste principles. It is therefore critical to thoroughly investigate the material, the established methods and preparation processes, and the ways of concentrating useful components into commercial products.
PB  - MDPI
T2  - Sustainability
T1  - Reapplication Potential of Historic Pb–Zn Slag with Regard to Zero Waste Principles
IS  - 2
SP  - 720
VL  - 16
DO  - 10.3390/su16020720
ER  - 

@article{
author = "Radulović, Dragan and Terzić, Anja and Stojanović, Jovica and Jovanović, Vladimir and Todorović, Dejan and Ivošević, Branislav",
year = "2024",
abstract = "Smelting used to be less efficient; therefore, wastes obtained from historical processing at smelter plants usually contain certain quantities of valuable metals. Upon the extraction of useful metal elements, metallurgical slag can be repurposed as an alternative mineral raw material in the building sector. A case study was conducted, which included an investigation of the physico-chemical, mineralogical, and microstructural properties of Pb–Zn slag found at the historic landfill near the Topilnica Veles smelter in North Macedonia. The slag was sampled using drill holes. The mineralogical and microstructural analysis revealed that Pb–Zn slag is a very complex and inhomogeneous alternative raw material with utilizable levels of metals, specifically Pb (2.3 wt.%), Zn (7.1 wt.%), and Ag (27.5 ppm). Crystalline mineral phases of wurtzite, sphalerite, galena, cerussite, akermanite, wüstite, monticellite, franklinite, and zincite were identified in the analyzed samples. The slag’s matrix consisted of alumino-silicates, amorphous silicates, and mixtures of spinel and silicates. Due to the economic potential of Pb, Zn, and Ag extraction, the first stage of reutilization will be to transform metal concentrates into their collective concentrate, from which the maximum amount of these crucial components can be extracted. This procedure will include combination of gravity concentration and separation techniques. The next step is to assess the Pb–Zn slag’s potential applications in civil engineering, based on its mineralogical and physico-mechanical properties. Alumino-silicates present in Pb–Zn slag, which contain high concentrations of SiO2, Al2O3, CaO, and Fe2O3, are suitable for use in cementitious building composites. The goal of this research is to suggest a solution by which to close the circle of slag’s reutilization in terms of zero waste principles. It is therefore critical to thoroughly investigate the material, the established methods and preparation processes, and the ways of concentrating useful components into commercial products.",
publisher = "MDPI",
journal = "Sustainability",
title = "Reapplication Potential of Historic Pb–Zn Slag with Regard to Zero Waste Principles",
number = "2",
pages = "720",
volume = "16",
doi = "10.3390/su16020720"
}

Radulović, D., Terzić, A., Stojanović, J., Jovanović, V., Todorović, D.,& Ivošević, B.. (2024). Reapplication Potential of Historic Pb–Zn Slag with Regard to Zero Waste Principles. in Sustainability
MDPI., 16(2), 720.
https://doi.org/10.3390/su16020720

Radulović D, Terzić A, Stojanović J, Jovanović V, Todorović D, Ivošević B. Reapplication Potential of Historic Pb–Zn Slag with Regard to Zero Waste Principles. in Sustainability. 2024;16(2):720.
doi:10.3390/su16020720 .

Radulović, Dragan, Terzić, Anja, Stojanović, Jovica, Jovanović, Vladimir, Todorović, Dejan, Ivošević, Branislav, "Reapplication Potential of Historic Pb–Zn Slag with Regard to Zero Waste Principles" in Sustainability, 16, no. 2 (2024):720,
https://doi.org/10.3390/su16020720 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Vasić (prev. Arsenović), Milica
AU  - Stojanović, Jovica
AU  - Pavlović, Vladimir
AU  - Radojević, Zagorka
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/676
AB  - Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200 °C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.















Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200 °C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.
AB  - Филосиликатни минерал пирофилит се претежно користи у керамичкој индустрији јер показује високу ватросталност. Због своје термичке трансформације у мулит, пирофилит је стабилан на повишеним температурама, што га чини погодним минералним додатком за ватросталне необликоване материјале и различите керамичке обликоване производе. У овом раду пирофилит је коришћен као замена за 50 % глине у керамици и до 30 % замене за цемент у малтерима. Испитивана су физичко-механичка својства. Скупљање при печењу у керамици третираној на 1200 °C смањено је додавањем пирофилита. Пирофилит се понашао као додатни извор поцоланског материјала током хидратације цемента. Унутар микроструктуре формирао је микроарматуру у облику кристалне фолије, што је побољшало механичка својства малтера на бази обичног Портланд цемента, високоалуминатног цемента и мешаних цемента. Истраживањем је доказана ефикасност и погодност пирофилита који се користи као замена за глину у керамици и замена за цемент у малтерима.
PB  - Beograd : Međunarodni Institut za nauku o sinterovanju
T2  - Science of Sintering
T1  - Application of pyrophyllite in high-temperature treated building materials
EP  - 16
IS  - 3
SP  - 1
VL  - 55
DO  - 10.2298/SOS220610014T
ER  - 

@article{
author = "Terzić, Anja and Vasić (prev. Arsenović), Milica and Stojanović, Jovica and Pavlović, Vladimir and Radojević, Zagorka",
year = "2023",
abstract = "Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200 °C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars.















Phyllosilicate mineral pyrophyllite is predominantly used in the ceramic industry because it exhibits high refractoriness. Due to its thermal transformation into mullite, pyrophyllite is stable at elevated temperatures, making it a suitable mineral additive for refractory non-shaped materials and various ceramic shaped products. In this study, pyrophyllite is employed as 50 % clay replacement in the ceramics and up to 30 % cement replacement in mortars. Physico-mechanical properties were investigated. The firing shrinkage in the ceramics treated at 1200 °C was reduced by pyrophyllite addition. Pyrophyllite acted as additional pozzolana during cement hydration. Within the microstructure, it formed micro-reinforcement in the shape of crystalline folia, which improves the mechanical properties of ordinary Portland cement, high aluminate cement, and blended cement mortars. The investigation proved the efficiency and suitability of pyrophyllite employed as a substitution for clay in ceramics and a cement replacement in mortars., Филосиликатни минерал пирофилит се претежно користи у керамичкој индустрији јер показује високу ватросталност. Због своје термичке трансформације у мулит, пирофилит је стабилан на повишеним температурама, што га чини погодним минералним додатком за ватросталне необликоване материјале и различите керамичке обликоване производе. У овом раду пирофилит је коришћен као замена за 50 % глине у керамици и до 30 % замене за цемент у малтерима. Испитивана су физичко-механичка својства. Скупљање при печењу у керамици третираној на 1200 °C смањено је додавањем пирофилита. Пирофилит се понашао као додатни извор поцоланског материјала током хидратације цемента. Унутар микроструктуре формирао је микроарматуру у облику кристалне фолије, што је побољшало механичка својства малтера на бази обичног Портланд цемента, високоалуминатног цемента и мешаних цемента. Истраживањем је доказана ефикасност и погодност пирофилита који се користи као замена за глину у керамици и замена за цемент у малтерима.",
publisher = "Beograd : Međunarodni Institut za nauku o sinterovanju",
journal = "Science of Sintering",
title = "Application of pyrophyllite in high-temperature treated building materials",
pages = "16-1",
number = "3",
volume = "55",
doi = "10.2298/SOS220610014T"
}

Terzić, A., Vasić (prev. Arsenović), M., Stojanović, J., Pavlović, V.,& Radojević, Z.. (2023). Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering
Beograd : Međunarodni Institut za nauku o sinterovanju., 55(3), 1-16.
https://doi.org/10.2298/SOS220610014T

Terzić A, Vasić (prev. Arsenović) M, Stojanović J, Pavlović V, Radojević Z. Application of pyrophyllite in high-temperature treated building materials. in Science of Sintering. 2023;55(3):1-16.
doi:10.2298/SOS220610014T .

Terzić, Anja, Vasić (prev. Arsenović), Milica, Stojanović, Jovica, Pavlović, Vladimir, Radojević, Zagorka, "Application of pyrophyllite in high-temperature treated building materials" in Science of Sintering, 55, no. 3 (2023):1-16,
https://doi.org/10.2298/SOS220610014T . .

TY  - CONF
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Ivošević, Branislav
AU  - Todorović, Dejan
AU  - Jovanović, Vladimir
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1101
AB  - Since the late seventies of twentieth century geopolymers have been investigated as a new type of aluminosilicate binders which will eventually replace traditional cement based structural materials. Geopolymers are the three-dimensional synthetic inorganic polymers, which contain amorphous and semi-amorphous crystal microstructures. Hybrid binders are structural materials which combine alkali activated raw materials and cement in its mixdesign. In this paper the characteristics of bentonite, which are important for its application in geopolymers and hybrid cement binders, were thoroughly investigated in order to evaluate its proneness to alkali activation. Bentonite samples from three different deposits were submitted to detail testing. Elaborate physico-chemical and mineralogical characterization was The Nineth Serbian Ceramic Society Conference »Advanced Ceramics and Application« September 20-21, 2021 Serbian Academy of Sciences and Arts, Knez Mihailova 35, Belgrade, Serbia 83 conducted. Determined moisture contents in bentonite samples were from 20.54 % to 24.15 %. Hygroscopic moisture was in range 7.99 - 8.99 %, and specific mass was in range 2.42 - 2.52 g/cm3 . Grain-size analysis of the bentonite samples was conducted using Sympatec laser sizer. Mineralogical analysis highlighted smectite, α-crystbalite, quartz, and feldspar as the most aboundant mineral phases. DTA/TG analyses were conducted to monitor thermal behavior of the bentonite samples in thermal range 20 – 1000 °C. Cation exchange capacity, CEC, (Ca2+, Mg2+, Na+ , and K+) was also conducted. Obtained total CEC values were from 66.16 meq/100g to 78.97 meq/100g. Plasticity of bentonite samples was determined using Atterberg – Casagrande methodology. Also Moisture absorption coefficient (using Enslin –Neff methodology), pH values and dioxin content in samples were tested. It was determined that investigated bentonite samples showed high potential for application in construction materials, i.e. geopolymers and hybrid binders.
PB  - Belgrade : Serbian Ceramic Society
C3  - Serbian Ceramic Society Conference “Advanced Ceramic and Application IX Book of Abstracts
T1  - Investigation of bentonite characteristics for application in geopolymers and hybrid cement binders
EP  - 83
SP  - 82
ER  - 

@conference{
author = "Radulović, Dragan and Andrić, Ljubiša and Terzić, Anja and Ivošević, Branislav and Todorović, Dejan and Jovanović, Vladimir",
year = "2021",
abstract = "Since the late seventies of twentieth century geopolymers have been investigated as a new type of aluminosilicate binders which will eventually replace traditional cement based structural materials. Geopolymers are the three-dimensional synthetic inorganic polymers, which contain amorphous and semi-amorphous crystal microstructures. Hybrid binders are structural materials which combine alkali activated raw materials and cement in its mixdesign. In this paper the characteristics of bentonite, which are important for its application in geopolymers and hybrid cement binders, were thoroughly investigated in order to evaluate its proneness to alkali activation. Bentonite samples from three different deposits were submitted to detail testing. Elaborate physico-chemical and mineralogical characterization was The Nineth Serbian Ceramic Society Conference »Advanced Ceramics and Application« September 20-21, 2021 Serbian Academy of Sciences and Arts, Knez Mihailova 35, Belgrade, Serbia 83 conducted. Determined moisture contents in bentonite samples were from 20.54 % to 24.15 %. Hygroscopic moisture was in range 7.99 - 8.99 %, and specific mass was in range 2.42 - 2.52 g/cm3 . Grain-size analysis of the bentonite samples was conducted using Sympatec laser sizer. Mineralogical analysis highlighted smectite, α-crystbalite, quartz, and feldspar as the most aboundant mineral phases. DTA/TG analyses were conducted to monitor thermal behavior of the bentonite samples in thermal range 20 – 1000 °C. Cation exchange capacity, CEC, (Ca2+, Mg2+, Na+ , and K+) was also conducted. Obtained total CEC values were from 66.16 meq/100g to 78.97 meq/100g. Plasticity of bentonite samples was determined using Atterberg – Casagrande methodology. Also Moisture absorption coefficient (using Enslin –Neff methodology), pH values and dioxin content in samples were tested. It was determined that investigated bentonite samples showed high potential for application in construction materials, i.e. geopolymers and hybrid binders.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Serbian Ceramic Society Conference “Advanced Ceramic and Application IX Book of Abstracts",
title = "Investigation of bentonite characteristics for application in geopolymers and hybrid cement binders",
pages = "83-82"
}

Radulović, D., Andrić, L., Terzić, A., Ivošević, B., Todorović, D.,& Jovanović, V.. (2021). Investigation of bentonite characteristics for application in geopolymers and hybrid cement binders. in Serbian Ceramic Society Conference “Advanced Ceramic and Application IX Book of Abstracts
Belgrade : Serbian Ceramic Society., 82-83.

Radulović D, Andrić L, Terzić A, Ivošević B, Todorović D, Jovanović V. Investigation of bentonite characteristics for application in geopolymers and hybrid cement binders. in Serbian Ceramic Society Conference “Advanced Ceramic and Application IX Book of Abstracts. 2021;:82-83..

Radulović, Dragan, Andrić, Ljubiša, Terzić, Anja, Ivošević, Branislav, Todorović, Dejan, Jovanović, Vladimir, "Investigation of bentonite characteristics for application in geopolymers and hybrid cement binders" in Serbian Ceramic Society Conference “Advanced Ceramic and Application IX Book of Abstracts (2021):82-83.

Trumić, M., Trumić, M., Radulović, D., Terzić, A., Andrić, L.,& Petrov, M.. (2018). Uticaj smanjenja sadržaja metala u ulaznoj rudi na vrednost Bondovog radnog indexa Pb-Zn rude iz rudnika “Grot”-Kriva Feja -Vranje. 
Bor : University of Belgrade, Technical Faculty in Bor..

Trumić M, Trumić M, Radulović D, Terzić A, Andrić L, Petrov M. Uticaj smanjenja sadržaja metala u ulaznoj rudi na vrednost Bondovog radnog indexa Pb-Zn rude iz rudnika “Grot”-Kriva Feja -Vranje. 2018;..

Trumić, Milan, Trumić, Maja, Radulović, Dragan, Terzić, Anja, Andrić, Ljubiša, Petrov, Milan, "Uticaj smanjenja sadržaja metala u ulaznoj rudi na vrednost Bondovog radnog indexa Pb-Zn rude iz rudnika “Grot”-Kriva Feja -Vranje" (2018).

Radulović, D., Andrić, L., Terzić, A., Stojanović, J., Marković, M.,& Petrov, M.. (2018). Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH). 
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina..

Radulović D, Andrić L, Terzić A, Stojanović J, Marković M, Petrov M. Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH). 2018;..

Radulović, Dragan, Andrić, Ljubiša, Terzić, Anja, Stojanović, Jovica, Marković, Marija, Petrov, Milan, "Definisanje uslova razdvajanja (separacije), posle mlevenja, u mineralnom sistemu pirofilita-kvarca u zasebne proizvode, ležišta „Parsović“ – Konjic (BiH)" (2018).

TY  - CONF
AU  - Terzić, Anja
AU  - Obradović, Nina
AU  - Pouchly, Vaclav
AU  - Maca, Karel
AU  - Radulović, Dragan
AU  - Andrić, Ljubiša
PY  - 2017
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1031
AB  - This study provided insights into relations between sintering mechanism and behavior of two types of steatite-based ceramics. Experimental steatite samples were synthesized from low-cost natural raw materials. The sintering was conducted via dilatometer and SPS method. The thermally induced changes in the steatites and its properties were monitored by instrumental analyses: mineral phase transition was investigated via XRD, and the thermal stability was observed using DTA. The investigation highlighted the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 49th International October Conference on Mining and Metallurgy
T1  - Effects of different sintering routes on the properties of steatite-based ceramics
EP  - 197
SP  - 194
ER  - 

@conference{
author = "Terzić, Anja and Obradović, Nina and Pouchly, Vaclav and Maca, Karel and Radulović, Dragan and Andrić, Ljubiša",
year = "2017",
abstract = "This study provided insights into relations between sintering mechanism and behavior of two types of steatite-based ceramics. Experimental steatite samples were synthesized from low-cost natural raw materials. The sintering was conducted via dilatometer and SPS method. The thermally induced changes in the steatites and its properties were monitored by instrumental analyses: mineral phase transition was investigated via XRD, and the thermal stability was observed using DTA. The investigation highlighted the optimal combinations of the raw materials for production of the steatite ceramics for advanced electrical engineering applications.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "49th International October Conference on Mining and Metallurgy",
title = "Effects of different sintering routes on the properties of steatite-based ceramics",
pages = "197-194"
}

Terzić, A., Obradović, N., Pouchly, V., Maca, K., Radulović, D.,& Andrić, L.. (2017). Effects of different sintering routes on the properties of steatite-based ceramics. in 49th International October Conference on Mining and Metallurgy
Bor : University of Belgrade, Technical Faculty in Bor., 194-197.

Terzić A, Obradović N, Pouchly V, Maca K, Radulović D, Andrić L. Effects of different sintering routes on the properties of steatite-based ceramics. in 49th International October Conference on Mining and Metallurgy. 2017;:194-197..

Terzić, Anja, Obradović, Nina, Pouchly, Vaclav, Maca, Karel, Radulović, Dragan, Andrić, Ljubiša, "Effects of different sintering routes on the properties of steatite-based ceramics" in 49th International October Conference on Mining and Metallurgy (2017):194-197.

TY  - CONF
AU  - Radulović, Dragan
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Petrov, Milan
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1044
AB  - Calcium carbonate (CaCO3 ) is mineral filler that has been most extensively used in the construction composites as well as in the polymer industry. Coarse CaCO 3 grains can be easily incorporated into the composite material, but the smaller-sized particles tend to agglomerate due to the enhanced particle-to-particle interactions, which leads to serious performance problems. The most efficient way of surpassing this problem is to enhance the final composite properties by surface treatment of the filler with a surfactant. Following such procedure a water-repellent construction composites are obtained (i.e. reparation mortars, mortars for the exterior works, thin coatings for concrete walls, etc.). The stearic acid is a universal and economical surfactant which is often used to improve CaCO3 hydrophobic properties. This study investigates and subsequently compares the surface and mechanical properties of untreated ground calcium carbonate powder and treated powder with stearic acid using a dry process coating system. The CaCO 3 powder (grain size class: -200 + 63 μm) was pulverized in a laboratory Retsch-ZM-1 mill with a 250 μm mesh size sieve and a peripheral comminuting path. The surface of CaCO3 powder is generally hydrophilic, but it was changed to a hydrophobic surface when coated with SA. The coating procedure was conducted in following manner: 1% of SA was added to the CaCO3 powder which was previously thermally treated at 120°C for 2 hours, and the mixture was stirred in a laboratory mixer with 1500 rpm. The surface treatment decreases the intensity of particle-to-particle interaction and increase adhesion of filler. There has been extensive research reporting about the effects of stearic acid surface treatment on the physical properties and thermal behavior as well as mechanical properties of CaCO3 composites. The contact angle of water on the coated calcium carbonate powder surface and hydrophobicity are increased with increasing concentration of SA. As a result, thermal stability and mechanical properties of the composite were increased compared to untreated CaCO3 composites. The influence of surface treatment of the particles, with and without stearic acid on the mechanical, thermal and structural properties was studied. The experiments included mechanical and physical testing; differential thermal analysis, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy. The composite systems containing coated CaCO3 were found to exhibit better mechanical properties as compared to composite systems containing uncoated CaCO3 .
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  - Effects of SA surface treatment on the properties of CaCO3 used as filler in construction composites
ER  - 

@conference{
author = "Radulović, Dragan and Terzić, Anja and Andrić, Ljubiša and Petrov, Milan",
year = "2016",
abstract = "Calcium carbonate (CaCO3 ) is mineral filler that has been most extensively used in the construction composites as well as in the polymer industry. Coarse CaCO 3 grains can be easily incorporated into the composite material, but the smaller-sized particles tend to agglomerate due to the enhanced particle-to-particle interactions, which leads to serious performance problems. The most efficient way of surpassing this problem is to enhance the final composite properties by surface treatment of the filler with a surfactant. Following such procedure a water-repellent construction composites are obtained (i.e. reparation mortars, mortars for the exterior works, thin coatings for concrete walls, etc.). The stearic acid is a universal and economical surfactant which is often used to improve CaCO3 hydrophobic properties. This study investigates and subsequently compares the surface and mechanical properties of untreated ground calcium carbonate powder and treated powder with stearic acid using a dry process coating system. The CaCO 3 powder (grain size class: -200 + 63 μm) was pulverized in a laboratory Retsch-ZM-1 mill with a 250 μm mesh size sieve and a peripheral comminuting path. The surface of CaCO3 powder is generally hydrophilic, but it was changed to a hydrophobic surface when coated with SA. The coating procedure was conducted in following manner: 1% of SA was added to the CaCO3 powder which was previously thermally treated at 120°C for 2 hours, and the mixture was stirred in a laboratory mixer with 1500 rpm. The surface treatment decreases the intensity of particle-to-particle interaction and increase adhesion of filler. There has been extensive research reporting about the effects of stearic acid surface treatment on the physical properties and thermal behavior as well as mechanical properties of CaCO3 composites. The contact angle of water on the coated calcium carbonate powder surface and hydrophobicity are increased with increasing concentration of SA. As a result, thermal stability and mechanical properties of the composite were increased compared to untreated CaCO3 composites. The influence of surface treatment of the particles, with and without stearic acid on the mechanical, thermal and structural properties was studied. The experiments included mechanical and physical testing; differential thermal analysis, scanning electron microscopy (SEM), X-ray diffraction (XRD) and Fourier transform infrared spectroscopy. The composite systems containing coated CaCO3 were found to exhibit better mechanical properties as compared to composite systems containing uncoated CaCO3 .",
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 = "Effects of SA surface treatment on the properties of CaCO3 used as filler in construction composites"
}

Radulović, D., Terzić, A., Andrić, L.,& Petrov, M.. (2016). Effects of SA surface treatment on the properties of CaCO3 used as filler in construction composites. 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..

Radulović D, Terzić A, Andrić L, Petrov M. Effects of SA surface treatment on the properties of CaCO3 used as filler in construction composites. in Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing”. 2016;..

Radulović, Dragan, Terzić, Anja, Andrić, Ljubiša, Petrov, Milan, "Effects of SA surface treatment on the properties of CaCO3 used as filler in construction composites" in Serbian Ceramic Society Conference “Advanced Ceramic and Application V – New frontiers in multifunctional material science and processing” (2016).

TY  - CHAP
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Pašalić, Snežana
AU  - Petrov, Milan
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1093
AB  - The investigation was conducted with an aim to increase the reactivity of the comminuted phosphate ore and to establish the optimal mechanical activation period of the grain mixture. In order to obtain complete insight into the process and phenomena of the phosphate grain mixture activation, a good understanding of the theoretical principles of the activation operation is necessary. In the experiments, the vibratory and planetary mills were used as activators. The obtained results pointed out that both amorphous and crystallized forms appeared within the Lisina ore deposit mixture due to the specific genetic conditions which rarely occur in the deposits. Such a heterogenic composition of the useful phosphoric part of the ore gave a variety of the results during the leaching. For the first time, the experiments of phosphate (apatite) mechanochemical activation from Lisina ore deposit were performed in order to improve its reactivity.
PB  - Paris : Atlantis Press
T2  - III Advanced Ceramics and Applications Conference
T1  - The effects of the phosphates mechanical activation
EP  - 352
SP  - 339
DO  - 10.2991/978-94-6239-157-4_23
ER  - 

@inbook{
author = "Andrić, Ljubiša and Terzić, Anja and Pašalić, Snežana and Petrov, Milan",
year = "2016",
abstract = "The investigation was conducted with an aim to increase the reactivity of the comminuted phosphate ore and to establish the optimal mechanical activation period of the grain mixture. In order to obtain complete insight into the process and phenomena of the phosphate grain mixture activation, a good understanding of the theoretical principles of the activation operation is necessary. In the experiments, the vibratory and planetary mills were used as activators. The obtained results pointed out that both amorphous and crystallized forms appeared within the Lisina ore deposit mixture due to the specific genetic conditions which rarely occur in the deposits. Such a heterogenic composition of the useful phosphoric part of the ore gave a variety of the results during the leaching. For the first time, the experiments of phosphate (apatite) mechanochemical activation from Lisina ore deposit were performed in order to improve its reactivity.",
publisher = "Paris : Atlantis Press",
journal = "III Advanced Ceramics and Applications Conference",
booktitle = "The effects of the phosphates mechanical activation",
pages = "352-339",
doi = "10.2991/978-94-6239-157-4_23"
}

Andrić, L., Terzić, A., Pašalić, S.,& Petrov, M.. (2016). The effects of the phosphates mechanical activation. in III Advanced Ceramics and Applications Conference
Paris : Atlantis Press., 339-352.
https://doi.org/10.2991/978-94-6239-157-4_23

Andrić L, Terzić A, Pašalić S, Petrov M. The effects of the phosphates mechanical activation. in III Advanced Ceramics and Applications Conference. 2016;:339-352.
doi:10.2991/978-94-6239-157-4_23 .

Andrić, Ljubiša, Terzić, Anja, Pašalić, Snežana, Petrov, Milan, "The effects of the phosphates mechanical activation" in III Advanced Ceramics and Applications Conference (2016):339-352,
https://doi.org/10.2991/978-94-6239-157-4_23 . .

TY  - CONF
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Pašalić, Snežana
AU  - Petrov, Milan
AU  - Radulović, Dragan
PY  - 2015
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1054
AB  - The aim of this investigation was to increase the reactivity of comminuted phosphate ore for application in composite ceramic materials. The vibratory and planetary mills were used as mechanical activators during experimental research. The obtained results highlighted the presence of both amorphous and crystallized forms appearing in the observed phosphate ore mixture due to the specific genetic conditions which rarely occur in deposits. The heterogenic composition of the ore useful phosphoric part gave optimal results during the leaching test. For the first time, the experiments of phosphate mechano-chemical activation from Lisina ore deposit were performed in order to improve its reactivity.
PB  - Bor : Mining and Metallurgy Institute Bor
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 47th International October Conference on Mining and Metallurgy
T1  - Activation of phosphates for aplication in composite ceramic materials
EP  - 82
SP  - 77
ER  - 

@conference{
author = "Andrić, Ljubiša and Terzić, Anja and Pašalić, Snežana and Petrov, Milan and Radulović, Dragan",
year = "2015",
abstract = "The aim of this investigation was to increase the reactivity of comminuted phosphate ore for application in composite ceramic materials. The vibratory and planetary mills were used as mechanical activators during experimental research. The obtained results highlighted the presence of both amorphous and crystallized forms appearing in the observed phosphate ore mixture due to the specific genetic conditions which rarely occur in deposits. The heterogenic composition of the ore useful phosphoric part gave optimal results during the leaching test. For the first time, the experiments of phosphate mechano-chemical activation from Lisina ore deposit were performed in order to improve its reactivity.",
publisher = "Bor : Mining and Metallurgy Institute Bor, Bor : University of Belgrade, Technical Faculty in Bor",
journal = "47th International October Conference on Mining and Metallurgy",
title = "Activation of phosphates for aplication in composite ceramic materials",
pages = "82-77"
}

Andrić, L., Terzić, A., Pašalić, S., Petrov, M.,& Radulović, D.. (2015). Activation of phosphates for aplication in composite ceramic materials. in 47th International October Conference on Mining and Metallurgy
Bor : Mining and Metallurgy Institute Bor., 77-82.

Andrić L, Terzić A, Pašalić S, Petrov M, Radulović D. Activation of phosphates for aplication in composite ceramic materials. in 47th International October Conference on Mining and Metallurgy. 2015;:77-82..

Andrić, Ljubiša, Terzić, Anja, Pašalić, Snežana, Petrov, Milan, Radulović, Dragan, "Activation of phosphates for aplication in composite ceramic materials" in 47th International October Conference on Mining and Metallurgy (2015):77-82.