TY  - JOUR
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Mihajlović, Slavica
AU  - Kašić, Vladan
AU  - Grubišić, Mirko
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/681
AB  - Concrete is a material that has been used for centuries and is often modified using polymers. In the last fifty years, synthetic polymers have been used for the modification of concrete, but also for the production of concrete. In recent decades, sulfur concrete has been an interesting product that can be used mainly in low-rise construction due to its characteristics. In this work, we used the starting mixture for the preparation of sulfur concrete (sand, elemental sulfur with the addition of modified sulfur and fillers) heated to a temperature of 120 ºC to 170 ºC and homogenized. The results of previous research on the production of sulfur concrete showed that the density of the obtained product changes depending on the type as well as the amount of filler added to the basic mixture based on raw materials. Talc, microsilicon, plate alumina and fly ash were used as fillers. The amounts of fillers were 0%, 1%, 3%, 5%, 7% and 10%.
PB  - University of Belgrade - Faculty of Mining and Geology
T2  - Underground mining engineering
T1  - Influence of type and quantity of filler on change of density of sulfur concrete
EP  - 25
IS  - 42
SP  - 19
DO  - 10.5937/podrad2342019Q
ER  - 

@article{
author = "Đorđević, Nataša and Vlahović, Milica and Martinović, Sanja and Mihajlović, Slavica and Kašić, Vladan and Grubišić, Mirko",
year = "2023",
abstract = "Concrete is a material that has been used for centuries and is often modified using polymers. In the last fifty years, synthetic polymers have been used for the modification of concrete, but also for the production of concrete. In recent decades, sulfur concrete has been an interesting product that can be used mainly in low-rise construction due to its characteristics. In this work, we used the starting mixture for the preparation of sulfur concrete (sand, elemental sulfur with the addition of modified sulfur and fillers) heated to a temperature of 120 ºC to 170 ºC and homogenized. The results of previous research on the production of sulfur concrete showed that the density of the obtained product changes depending on the type as well as the amount of filler added to the basic mixture based on raw materials. Talc, microsilicon, plate alumina and fly ash were used as fillers. The amounts of fillers were 0%, 1%, 3%, 5%, 7% and 10%.",
publisher = "University of Belgrade - Faculty of Mining and Geology",
journal = "Underground mining engineering",
title = "Influence of type and quantity of filler on change of density of sulfur concrete",
pages = "25-19",
number = "42",
doi = "10.5937/podrad2342019Q"
}

Đorđević, N., Vlahović, M., Martinović, S., Mihajlović, S., Kašić, V.,& Grubišić, M.. (2023). Influence of type and quantity of filler on change of density of sulfur concrete. in Underground mining engineering
University of Belgrade - Faculty of Mining and Geology.(42), 19-25.
https://doi.org/10.5937/podrad2342019Q

Đorđević N, Vlahović M, Martinović S, Mihajlović S, Kašić V, Grubišić M. Influence of type and quantity of filler on change of density of sulfur concrete. in Underground mining engineering. 2023;(42):19-25.
doi:10.5937/podrad2342019Q .

Đorđević, Nataša, Vlahović, Milica, Martinović, Sanja, Mihajlović, Slavica, Kašić, Vladan, Grubišić, Mirko, "Influence of type and quantity of filler on change of density of sulfur concrete" in Underground mining engineering, no. 42 (2023):19-25,
https://doi.org/10.5937/podrad2342019Q . .

TY  - CONF
AU  - Milićević, Sonja
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Jovanović, Vladimir
AU  - Šešlija, Sanja
AU  - Savić, Aleksandar
AU  - Kragović, Milan
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1086
AB  - The increasing levels of industrial wastewater that are released to the environment present a serious
threat to human health, living resources, and ecological systems. Fly ash was tested for removal of Cu2+ from
contaminated water in in a micronized and pelletized form. Experiments were performed for wide range of initial
concentration of Cu 25-600 mg dm-3. Pellets fraction size was 2.0-3.5 mm, while the content of cement, as a binder
was 10%. Under applied experimental conditions pellets manifested exceptional adsorption capacity (25.64 mg/g)
that was three times higher compared to the micronized fly ash (8.85 mg/g).
PB  - Belgrade : University of Belgrade, Faculty of Mining and Geology
C3  - 8th International Conference MINING AND ENVIRONMENTAL PROTECTION
T1  - Copper removal by pelletized fly ash
EP  - 42
SP  - 39
ER  - 

@conference{
author = "Milićević, Sonja and Martinović, Sanja and Vlahović, Milica and Jovanović, Vladimir and Šešlija, Sanja and Savić, Aleksandar and Kragović, Milan",
year = "2021",
abstract = "The increasing levels of industrial wastewater that are released to the environment present a serious
threat to human health, living resources, and ecological systems. Fly ash was tested for removal of Cu2+ from
contaminated water in in a micronized and pelletized form. Experiments were performed for wide range of initial
concentration of Cu 25-600 mg dm-3. Pellets fraction size was 2.0-3.5 mm, while the content of cement, as a binder
was 10%. Under applied experimental conditions pellets manifested exceptional adsorption capacity (25.64 mg/g)
that was three times higher compared to the micronized fly ash (8.85 mg/g).",
publisher = "Belgrade : University of Belgrade, Faculty of Mining and Geology",
journal = "8th International Conference MINING AND ENVIRONMENTAL PROTECTION",
title = "Copper removal by pelletized fly ash",
pages = "42-39"
}

Milićević, S., Martinović, S., Vlahović, M., Jovanović, V., Šešlija, S., Savić, A.,& Kragović, M.. (2021). Copper removal by pelletized fly ash. in 8th International Conference MINING AND ENVIRONMENTAL PROTECTION
Belgrade : University of Belgrade, Faculty of Mining and Geology., 39-42.

Milićević S, Martinović S, Vlahović M, Jovanović V, Šešlija S, Savić A, Kragović M. Copper removal by pelletized fly ash. in 8th International Conference MINING AND ENVIRONMENTAL PROTECTION. 2021;:39-42..

Milićević, Sonja, Martinović, Sanja, Vlahović, Milica, Jovanović, Vladimir, Šešlija, Sanja, Savić, Aleksandar, Kragović, Milan, "Copper removal by pelletized fly ash" in 8th International Conference MINING AND ENVIRONMENTAL PROTECTION (2021):39-42.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
AU  - Vušović, Nenad
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/817
AB  - Sodium carbonate was mechanically activated for 7 minutes in a vibro mill at a frequency of 3000 oscillations per
minute. Activated samples were stored in the air at room conditions for 31 days. To monitor the kinetics of the
transformation process of sodium carbonate to bicarbonate, Fourier-transform infrared (FTIR) spectroscopy
analysis was used and was performed as a function of relaxation time for characteristic groups observed: CO3
2–,
HCO3
– and OH–. The obtained results provided kinetics parameters for the transformation of carbonate into
bicarbonate as a result of chemisorption of moisture and carbon dioxide from the atmosphere.
PB  - Belgrade : University of Belgrade, Faculty of Mechanical Engineering
PB  - Kragujevac : Serbian Tribology Society
C3  - 10th International Conference on Tribology-BALKANTRIB’20
T1  - FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time
EP  - 202
SP  - 201
ER  - 

@conference{
author = "Đorđević, Nataša and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja and Vušović, Nenad",
year = "2021",
abstract = "Sodium carbonate was mechanically activated for 7 minutes in a vibro mill at a frequency of 3000 oscillations per
minute. Activated samples were stored in the air at room conditions for 31 days. To monitor the kinetics of the
transformation process of sodium carbonate to bicarbonate, Fourier-transform infrared (FTIR) spectroscopy
analysis was used and was performed as a function of relaxation time for characteristic groups observed: CO3
2–,
HCO3
– and OH–. The obtained results provided kinetics parameters for the transformation of carbonate into
bicarbonate as a result of chemisorption of moisture and carbon dioxide from the atmosphere.",
publisher = "Belgrade : University of Belgrade, Faculty of Mechanical Engineering, Kragujevac : Serbian Tribology Society",
journal = "10th International Conference on Tribology-BALKANTRIB’20",
title = "FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time",
pages = "202-201"
}

Đorđević, N., Vlahović, M., Mihajlović, S., Martinović, S.,& Vušović, N.. (2021). FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time. in 10th International Conference on Tribology-BALKANTRIB’20
Belgrade : University of Belgrade, Faculty of Mechanical Engineering., 201-202.

Đorđević N, Vlahović M, Mihajlović S, Martinović S, Vušović N. FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time. in 10th International Conference on Tribology-BALKANTRIB’20. 2021;:201-202..

Đorđević, Nataša, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, Vušović, Nenad, "FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time" in 10th International Conference on Tribology-BALKANTRIB’20 (2021):201-202.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Peleš, Adriana
AU  - Obradović, Nina
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1135
AB  - Mechanical activation is a commonly used and relatively fast and inexpensive procedure for
sample preparation before the sintering process. Cordierite is a stoichiometric mixture of three different
oxides (2MgO⋅2Al2O3⋅5SiO2). It is a very attractive, widely used high-temperature ceramic
material. The mechanical activation of the starting mixtures with 5.00 mass % TiO2 was performed
in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering
process was 2 t/cm2, based on our recent investigation. The sintering process was performed at 1350
°C for 2h and 4h in air atmosphere. X-ray diffraction was used to analyze the phase composition of
non- activated and 80 min activated samples, sintered for 2 and 4h, respectively. This paper investigates
the influence of prolonged sintering time on the product electrical properties.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS)
PB  - Belgrade : Society for Renewable Electrical Power Sources
C3  - 9th International Conference on Renewable Electrical Power Sources
T1  - Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time
EP  - 272
SP  - 269
ER  - 

@conference{
author = "Đorđević, Nataša and Peleš, Adriana and Obradović, Nina and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2021",
abstract = "Mechanical activation is a commonly used and relatively fast and inexpensive procedure for
sample preparation before the sintering process. Cordierite is a stoichiometric mixture of three different
oxides (2MgO⋅2Al2O3⋅5SiO2). It is a very attractive, widely used high-temperature ceramic
material. The mechanical activation of the starting mixtures with 5.00 mass % TiO2 was performed
in a high energy ball mill during 10-80 min. The applied compaction pressure before the sintering
process was 2 t/cm2, based on our recent investigation. The sintering process was performed at 1350
°C for 2h and 4h in air atmosphere. X-ray diffraction was used to analyze the phase composition of
non- activated and 80 min activated samples, sintered for 2 and 4h, respectively. This paper investigates
the influence of prolonged sintering time on the product electrical properties.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS), Belgrade : Society for Renewable Electrical Power Sources",
journal = "9th International Conference on Renewable Electrical Power Sources",
title = "Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time",
pages = "272-269"
}

Đorđević, N., Peleš, A., Obradović, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2021). Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time. in 9th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS)., 269-272.

Đorđević N, Peleš A, Obradović N, Vlahović M, Mihajlović S, Martinović S. Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time. in 9th International Conference on Renewable Electrical Power Sources. 2021;:269-272..

Đorđević, Nataša, Peleš, Adriana, Obradović, Nina, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time" in 9th International Conference on Renewable Electrical Power Sources (2021):269-272.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Mihajlović, Slavica
AU  - Vlahović, Milica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/814
AB  - Sodium carbonate samples were mechanically activated in a vibro mill. The increase in the
free surface area of the activated samples was monitored by the BET method, and the state of the crystal
lattice by the diffraction method. The analysis of the results showed a significant increase in the free
surface of the activated material as well as significant changes in the crystal structure of the samples due
to grinding in a vibro mill. Such activation of sodium carbonate would enable a significant increase in the
sorption properties of sodium carbonate and thus its application in environmental protection.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XIV International Mineral Processing and Recycling Conference (IMPRC 2021)
T1  - Application of mechanochemically activated sodium carbonate in environmental protection
EP  - 77
SP  - 72
ER  - 

@conference{
author = "Đorđević, Nataša and Mihajlović, Slavica and Vlahović, Milica and Martinović, Sanja",
year = "2021",
abstract = "Sodium carbonate samples were mechanically activated in a vibro mill. The increase in the
free surface area of the activated samples was monitored by the BET method, and the state of the crystal
lattice by the diffraction method. The analysis of the results showed a significant increase in the free
surface of the activated material as well as significant changes in the crystal structure of the samples due
to grinding in a vibro mill. Such activation of sodium carbonate would enable a significant increase in the
sorption properties of sodium carbonate and thus its application in environmental protection.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XIV International Mineral Processing and Recycling Conference (IMPRC 2021)",
title = "Application of mechanochemically activated sodium carbonate in environmental protection",
pages = "77-72"
}

Đorđević, N., Mihajlović, S., Vlahović, M.,& Martinović, S.. (2021). Application of mechanochemically activated sodium carbonate in environmental protection. in XIV International Mineral Processing and Recycling Conference (IMPRC 2021)
Bor : University of Belgrade, Technical Faculty in Bor., 72-77.

Đorđević N, Mihajlović S, Vlahović M, Martinović S. Application of mechanochemically activated sodium carbonate in environmental protection. in XIV International Mineral Processing and Recycling Conference (IMPRC 2021). 2021;:72-77..

Đorđević, Nataša, Mihajlović, Slavica, Vlahović, Milica, Martinović, Sanja, "Application of mechanochemically activated sodium carbonate in environmental protection" in XIV International Mineral Processing and Recycling Conference (IMPRC 2021) (2021):72-77.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Mihajlović, Slavica
AU  - Vlahović, Milica
AU  - Martinović, Sanja
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1164
AB  - U toku mehanohemijske aktivacije na materijalu dolazi do promena koje mogu da dovedu do
različitih fenomena. U ovom istraživanju mehanohemijski je aktiviran natrijum karbonat tokom 2,
7, 14 i 28 minuta. Aktivacija je vršena u vibro mlinu pri frekfenciji od 3000 oscilacija u minuti
(mleveno je po 50g Na2CO3 anhidrovanog). Nakon mehanohemijske aktivacije uzorci su izloženi
sobnim uslovima u prisustvu vlage i ugljen dioksida, u trajanju od 31 dana. U tom periodu (period
relaksacijie) praćene su transformacije koje su se dešavale na aktiviranim uzorcima. U cilju
praćenja kvalitativnih promena na aktiviranim uzorcija korišćena je infracrvena spektralna analiza.
Natrijum karbonat je dobar apsorbent ugljen dioksida, i istovremeno je material koji dobro
odgovara na uticaj mehaničke energije. Praćen je mehanizam nastajanja natrijum bikarbonata iz
mehanohemijski aktiviranog natrijum. Ispitivanja FTIR metodom su izvršena u funkciji od vremena
aktivacije, i vremena relaksacije. Praćene su karakteristične CO3
2-, HCO3
- i OH- grupe.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“,
T1  - Aktivacija čvrstih disperznih materijala
EP  - 51
SP  - 45
ER  - 

@conference{
author = "Đorđević, Nataša and Mihajlović, Slavica and Vlahović, Milica and Martinović, Sanja",
year = "2021",
abstract = "U toku mehanohemijske aktivacije na materijalu dolazi do promena koje mogu da dovedu do
različitih fenomena. U ovom istraživanju mehanohemijski je aktiviran natrijum karbonat tokom 2,
7, 14 i 28 minuta. Aktivacija je vršena u vibro mlinu pri frekfenciji od 3000 oscilacija u minuti
(mleveno je po 50g Na2CO3 anhidrovanog). Nakon mehanohemijske aktivacije uzorci su izloženi
sobnim uslovima u prisustvu vlage i ugljen dioksida, u trajanju od 31 dana. U tom periodu (period
relaksacijie) praćene su transformacije koje su se dešavale na aktiviranim uzorcima. U cilju
praćenja kvalitativnih promena na aktiviranim uzorcija korišćena je infracrvena spektralna analiza.
Natrijum karbonat je dobar apsorbent ugljen dioksida, i istovremeno je material koji dobro
odgovara na uticaj mehaničke energije. Praćen je mehanizam nastajanja natrijum bikarbonata iz
mehanohemijski aktiviranog natrijum. Ispitivanja FTIR metodom su izvršena u funkciji od vremena
aktivacije, i vremena relaksacije. Praćene su karakteristične CO3
2-, HCO3
- i OH- grupe.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“,",
title = "Aktivacija čvrstih disperznih materijala",
pages = "51-45"
}

Đorđević, N., Mihajlović, S., Vlahović, M.,& Martinović, S.. (2021). Aktivacija čvrstih disperznih materijala. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“,
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 45-51.

Đorđević N, Mihajlović S, Vlahović M, Martinović S. Aktivacija čvrstih disperznih materijala. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“,. 2021;:45-51..

Đorđević, Nataša, Mihajlović, Slavica, Vlahović, Milica, Martinović, Sanja, "Aktivacija čvrstih disperznih materijala" in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“, (2021):45-51.

TY  - CONF
AU  - Đorđević, Nataša
AU  - Martinović, Sanja
AU  - Mihajlović, Slavica
AU  - Vlahović, Milica
AU  - Lozanović Šajić, Jasmina
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1137
AB  - Sodium carbonate material is used as a good sorbent of carbon dioxide from the atmosphere,
and has gained increasing importance in environmental protection.In order to enhance its
sorption ability, mechanochemicaly activatied sodium carbonate was investigated,and the
occurred changes after the activation and the relaxation time in a controlled environment were
monitored. Activation was performed in a vibro-mill for 2 and 7 minutes, and the activated
samples were placed in an atmosphere of carbon dioxide at a humidity of 95 % for 96 hours,
(the relaxation time). Differential thermal and thermogravimetric analyses were applied with
the aim of determining the changes that occurred on the activated samples during the
relaxation period.The decomposition temperature change of activated Na2CO3 samples, mass
loss, and conversion degree of Na2CO3 to NaHCO3 was monitored depending on activation
and relaxation time periods.
PB  - Belgrade : Serbian Ceramic Society
C3  - The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application
T1  - DTA/TG analysis and phase changes of activated Na2CO3
EP  - 39
SP  - 39
ER  - 

@conference{
author = "Đorđević, Nataša and Martinović, Sanja and Mihajlović, Slavica and Vlahović, Milica and Lozanović Šajić, Jasmina",
year = "2021",
abstract = "Sodium carbonate material is used as a good sorbent of carbon dioxide from the atmosphere,
and has gained increasing importance in environmental protection.In order to enhance its
sorption ability, mechanochemicaly activatied sodium carbonate was investigated,and the
occurred changes after the activation and the relaxation time in a controlled environment were
monitored. Activation was performed in a vibro-mill for 2 and 7 minutes, and the activated
samples were placed in an atmosphere of carbon dioxide at a humidity of 95 % for 96 hours,
(the relaxation time). Differential thermal and thermogravimetric analyses were applied with
the aim of determining the changes that occurred on the activated samples during the
relaxation period.The decomposition temperature change of activated Na2CO3 samples, mass
loss, and conversion degree of Na2CO3 to NaHCO3 was monitored depending on activation
and relaxation time periods.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application",
title = "DTA/TG analysis and phase changes of activated Na2CO3",
pages = "39-39"
}

Đorđević, N., Martinović, S., Mihajlović, S., Vlahović, M.,& Lozanović Šajić, J.. (2021). DTA/TG analysis and phase changes of activated Na2CO3. in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application
Belgrade : Serbian Ceramic Society., 39-39.

Đorđević N, Martinović S, Mihajlović S, Vlahović M, Lozanović Šajić J. DTA/TG analysis and phase changes of activated Na2CO3. in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application. 2021;:39-39..

Đorđević, Nataša, Martinović, Sanja, Mihajlović, Slavica, Vlahović, Milica, Lozanović Šajić, Jasmina, "DTA/TG analysis and phase changes of activated Na2CO3" in The Nineth Serbian Ceramic Society Conference „Advanced Ceramics and Application (2021):39-39.

TY  - JOUR
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Đorđević, Nataša
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1166
AB  - Modifikacija konvencionalnih građevinskih materijala obično se izvodi upotrebom različitih otpadnih materijala. U ovom istraživanju biće prikazana upotreba sekundarnog sumpora kao veziva u betonu. Sumporni beton je termoplastični kompozit koji se sastoji od mineralnog agregata i punila, sa sumporom kao vezivom na temperaturi višoj od tačke očvršćavanja sumpora. Ovaj relativno nov građevinski materijal može da zameni konvencionalni Portland cementni beton u raznim konstrukcijama. U ovom radu biće prikazana svojstva sumpornog betona, kao i rezultati ispitivanja njegove postojanosti u agresivnim sredinama. U cilju ispitivanja svojstava, primenjene su destruktivne i nedestruktivne metode, dok su svojstva korelisana sa strukturommaterijala.
AB  - Modification of conventional building materials is commonly realized using different waste materials. In this research, the use of secondary sulfur as binding agent in concrete was analyzed. Sulfur concrete is a thermoplastic composite made of mineral aggregate and filler, with sulfur as a binder at temperature above the hardening point of sulfur. This relatively new building material can possibly replace conventional Portland cement concrete in many branches of construction. Also, in this research, sulfur concrete properties were examined, as well as its quality in the presence of the induced destruction agent. Destructive and nondestructive methods were applied and the material properties correlated with the structure.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
T2  - XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“
T1  - Possibilities of waste sulfur valorization in eco-friendly products
EP  - 101
SP  - 84
ER  - 

@article{
author = "Martinović, Sanja and Vlahović, Milica and Đorđević, Nataša",
year = "2021",
abstract = "Modifikacija konvencionalnih građevinskih materijala obično se izvodi upotrebom različitih otpadnih materijala. U ovom istraživanju biće prikazana upotreba sekundarnog sumpora kao veziva u betonu. Sumporni beton je termoplastični kompozit koji se sastoji od mineralnog agregata i punila, sa sumporom kao vezivom na temperaturi višoj od tačke očvršćavanja sumpora. Ovaj relativno nov građevinski materijal može da zameni konvencionalni Portland cementni beton u raznim konstrukcijama. U ovom radu biće prikazana svojstva sumpornog betona, kao i rezultati ispitivanja njegove postojanosti u agresivnim sredinama. U cilju ispitivanja svojstava, primenjene su destruktivne i nedestruktivne metode, dok su svojstva korelisana sa strukturommaterijala., Modification of conventional building materials is commonly realized using different waste materials. In this research, the use of secondary sulfur as binding agent in concrete was analyzed. Sulfur concrete is a thermoplastic composite made of mineral aggregate and filler, with sulfur as a binder at temperature above the hardening point of sulfur. This relatively new building material can possibly replace conventional Portland cement concrete in many branches of construction. Also, in this research, sulfur concrete properties were examined, as well as its quality in the presence of the induced destruction agent. Destructive and nondestructive methods were applied and the material properties correlated with the structure.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“",
title = "Possibilities of waste sulfur valorization in eco-friendly products",
pages = "101-84"
}

Martinović, S., Vlahović, M.,& Đorđević, N.. (2021). Possibilities of waste sulfur valorization in eco-friendly products. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 84-101.

Martinović S, Vlahović M, Đorđević N. Possibilities of waste sulfur valorization in eco-friendly products. in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“. 2021;:84-101..

Martinović, Sanja, Vlahović, Milica, Đorđević, Nataša, "Possibilities of waste sulfur valorization in eco-friendly products" in XII Simpozijum sa međunarodnim učešćem „Rudarstvo 2021“ (2021):84-101.

TY  - PAT
AU  - Martinović, Sanja
AU  - Vlahović, Milica
AU  - Volkov Husović, Tatjana
AU  - Savić, Aleksandar
AU  - Milićević, Sonja
AU  - Jovanović, Vladimir
AU  - Đorđević, Nataša
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1149
AB  - Stabilizacija teških metala, posebno bakra, iz kiselih otpadnih rudničkih voda izvodi se njihovom solidifikacijom u sumpor polimerni beton kao ekološki prihvatljiv građevinski materijal. Postupak se izvodi tako što se u reakcionom sudu agregat u količini od 56 mas. % zagreva na 160 °C. Zatim se dodaje 5 mas. % letećegpepela iz termoelektrane kao filera i 6 mas. % peleta letećeg pepela sa adsorbovanim teškim metalima iz rudničkih voda. Homogenizovanoj čvrstoj mešavini dodaje se 33 mas. % rastopa elementarnog i modifikovanog sumpora, tzv. sumpor modifikovanog veziva u masenom odnosu 98,2 % elementarnog sumpora i 1,8 % modifikovanog sumpora. Modifikovani sumpor dobijen je mešanjem elementarnog sumpora kao nus-proizvoda iz rafinacije nafte sa diciklopentadienom, na temperaturi od 132-141 °C. Nakon homogenizacije u trajanju od 2 do 5 minuta, dobijena mešavina izliva se u kalupe prethodno zagrejane na 120 °C i vibrira 10 sekundi. Površina ovako dobijene sumpor polimerne betonske mešavine se izravna i ostavi da očvrsne u kalupu na sobnoj temperaturi. Nakon 3 časa očvršćavanja uzorci se vade iz kalupa i neguju na sobnoj temperaturi tokom 24 časa. Dobijeni materijal je nakon ispitivanja pokazao zadovoljavajuće karakteristike potrebne za sve oblasti primene konvencionalnih betona. Ovim postupkom eliminisani su teški metali iz otpadnih rudničkih voda, korišćeni su industrijski nus-proizvodi (leteći pepeo i sumpor), čime su smanjene njihove deponije dok dobijeni materijal ne dovodi do sekundarnog zagađenja životne i stoga se smatra ekološki prihvatljivim.
PB  - Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju
T2  - Zavod za intelektualnu svojinu
T1  - Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama letećeg pepela u ekološki prihvatljiv građevinski materijal
ER  - 

@misc{
author = "Martinović, Sanja and Vlahović, Milica and Volkov Husović, Tatjana and Savić, Aleksandar and Milićević, Sonja and Jovanović, Vladimir and Đorđević, Nataša",
year = "2020",
abstract = "Stabilizacija teških metala, posebno bakra, iz kiselih otpadnih rudničkih voda izvodi se njihovom solidifikacijom u sumpor polimerni beton kao ekološki prihvatljiv građevinski materijal. Postupak se izvodi tako što se u reakcionom sudu agregat u količini od 56 mas. % zagreva na 160 °C. Zatim se dodaje 5 mas. % letećegpepela iz termoelektrane kao filera i 6 mas. % peleta letećeg pepela sa adsorbovanim teškim metalima iz rudničkih voda. Homogenizovanoj čvrstoj mešavini dodaje se 33 mas. % rastopa elementarnog i modifikovanog sumpora, tzv. sumpor modifikovanog veziva u masenom odnosu 98,2 % elementarnog sumpora i 1,8 % modifikovanog sumpora. Modifikovani sumpor dobijen je mešanjem elementarnog sumpora kao nus-proizvoda iz rafinacije nafte sa diciklopentadienom, na temperaturi od 132-141 °C. Nakon homogenizacije u trajanju od 2 do 5 minuta, dobijena mešavina izliva se u kalupe prethodno zagrejane na 120 °C i vibrira 10 sekundi. Površina ovako dobijene sumpor polimerne betonske mešavine se izravna i ostavi da očvrsne u kalupu na sobnoj temperaturi. Nakon 3 časa očvršćavanja uzorci se vade iz kalupa i neguju na sobnoj temperaturi tokom 24 časa. Dobijeni materijal je nakon ispitivanja pokazao zadovoljavajuće karakteristike potrebne za sve oblasti primene konvencionalnih betona. Ovim postupkom eliminisani su teški metali iz otpadnih rudničkih voda, korišćeni su industrijski nus-proizvodi (leteći pepeo i sumpor), čime su smanjene njihove deponije dok dobijeni materijal ne dovodi do sekundarnog zagađenja životne i stoga se smatra ekološki prihvatljivim.",
publisher = "Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju",
journal = "Zavod za intelektualnu svojinu",
title = "Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama letećeg pepela u ekološki prihvatljiv građevinski materijal"
}

Martinović, S., Vlahović, M., Volkov Husović, T., Savić, A., Milićević, S., Jovanović, V.,& Đorđević, N.. (2020). Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama letećeg pepela u ekološki prihvatljiv građevinski materijal. in Zavod za intelektualnu svojinu
Beograd : Univerzitet u Beogradu, Institut za hemiju, tehnologiju i metalurgiju..

Martinović S, Vlahović M, Volkov Husović T, Savić A, Milićević S, Jovanović V, Đorđević N. Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama letećeg pepela u ekološki prihvatljiv građevinski materijal. in Zavod za intelektualnu svojinu. 2020;..

Martinović, Sanja, Vlahović, Milica, Volkov Husović, Tatjana, Savić, Aleksandar, Milićević, Sonja, Jovanović, Vladimir, Đorđević, Nataša, "Postupak solidifikacije i stabilizacije teških metala iz otpadnih rudničkih voda adsorbovanih na peletama letećeg pepela u ekološki prihvatljiv građevinski materijal" in Zavod za intelektualnu svojinu (2020).

TY  - CONF
AU  - Đorđević, Nataša
AU  - Vlahović, Milica
AU  - Mihajlović, Slavica
AU  - Martinović, Sanja
PY  - 2020
UR  - https://ritnms.itnms.ac.rs/handle/123456789/812
AB  - Due to its properties, cordierite, 2MgO·2Al2O3·5SiO2, is nowadays an attractive ceramic material
for various applications but with very high sintering temperature. Mechanochemical activation
of the initial components mixture was performed in order to decrease the sintering temperature. DTA
method was used to monitor the temperature induced changes in the analyzed three-component system.
Since previous research has pointed out that the relaxation time can influence the activated
components in terms of chemical changes and the activation degree, it was important to determine
whether it has an impact on the observed activated system. The influence of the relaxation time on
the activated components mixture was analyzed by FT IR spectroscopy of both the initial components
and the activated mixture after 24h and 24 months relaxation periods.
AB  - Zahvaljujući svojim svojstvima, kordijerit, 2MgO·2Al2O3·5SiO2, danas je atraktivan keramički
materijal za razne primene, ali sa vrlo visokom temperaturom sinterovanja. Mehanohemijska aktivacija
smeše početnih komponenti izvedena je da bi se snizila temperatura sinterovanja. DTA metoda
je korišćena za praćenje temperaturnih promena u analiziranom trokomponentnom sistemu. Kako je
ranijim istraživanjima utvrđeno da vreme relaksacije može da utiče na aktivirane komponente u
smislu hemijskih promena i stepena aktiviranosti, bilo je značajno utvrditi ima li uticaj i na
posmatrani aktivirani system. Uticaj vremena relaksacije na smešu aktiviranih komponenata analiziran
je FT IR spektroskopijom i početnih komponenti i aktivirane smeše nakon 24h i 24 meseca
perioda relaksacije.
PB  - Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources
C3  - 8th International Conference on Renewable Electrical Power Sources
T1  - Impact of relaxation time of activated mixture on ceramics synthesis for electronic purposes
EP  - 62
SP  - 57
ER  - 

@conference{
author = "Đorđević, Nataša and Vlahović, Milica and Mihajlović, Slavica and Martinović, Sanja",
year = "2020",
abstract = "Due to its properties, cordierite, 2MgO·2Al2O3·5SiO2, is nowadays an attractive ceramic material
for various applications but with very high sintering temperature. Mechanochemical activation
of the initial components mixture was performed in order to decrease the sintering temperature. DTA
method was used to monitor the temperature induced changes in the analyzed three-component system.
Since previous research has pointed out that the relaxation time can influence the activated
components in terms of chemical changes and the activation degree, it was important to determine
whether it has an impact on the observed activated system. The influence of the relaxation time on
the activated components mixture was analyzed by FT IR spectroscopy of both the initial components
and the activated mixture after 24h and 24 months relaxation periods., Zahvaljujući svojim svojstvima, kordijerit, 2MgO·2Al2O3·5SiO2, danas je atraktivan keramički
materijal za razne primene, ali sa vrlo visokom temperaturom sinterovanja. Mehanohemijska aktivacija
smeše početnih komponenti izvedena je da bi se snizila temperatura sinterovanja. DTA metoda
je korišćena za praćenje temperaturnih promena u analiziranom trokomponentnom sistemu. Kako je
ranijim istraživanjima utvrđeno da vreme relaksacije može da utiče na aktivirane komponente u
smislu hemijskih promena i stepena aktiviranosti, bilo je značajno utvrditi ima li uticaj i na
posmatrani aktivirani system. Uticaj vremena relaksacije na smešu aktiviranih komponenata analiziran
je FT IR spektroskopijom i početnih komponenti i aktivirane smeše nakon 24h i 24 meseca
perioda relaksacije.",
publisher = "Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources",
journal = "8th International Conference on Renewable Electrical Power Sources",
title = "Impact of relaxation time of activated mixture on ceramics synthesis for electronic purposes",
pages = "62-57"
}

Đorđević, N., Vlahović, M., Mihajlović, S.,& Martinović, S.. (2020). Impact of relaxation time of activated mixture on ceramics synthesis for electronic purposes. in 8th International Conference on Renewable Electrical Power Sources
Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power Sources., 57-62.

Đorđević N, Vlahović M, Mihajlović S, Martinović S. Impact of relaxation time of activated mixture on ceramics synthesis for electronic purposes. in 8th International Conference on Renewable Electrical Power Sources. 2020;:57-62..

Đorđević, Nataša, Vlahović, Milica, Mihajlović, Slavica, Martinović, Sanja, "Impact of relaxation time of activated mixture on ceramics synthesis for electronic purposes" in 8th International Conference on Renewable Electrical Power Sources (2020):57-62.