TY  - JOUR
AU  - Vidak Vasić, Milica
AU  - Terzić, Anja
AU  - Radovanović, Željko
AU  - Radojević, Zagorka
AU  - Warr, Laurence N.
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5301
AB  - Geopolymerization was investigated as an alternative to traditional ceramic products by developing a more sustainable approach that avoids thermal treatment. The study presents the first known alkali-activation of the raw clay and waste clay brick mixture using the solid to liquid ratios of 2.33 and 2.78. Several experimental sets were prepared to harden under varying conditions (2–4 days drying in 60 °C–70 °C and 3 h steam-curing). Non-activated and activated samples were analyzed for their physical and chemical properties after 14, 21, and 28 days. The tile-shaped specimens exhibited better initial drying behavior than the cubes and produced stronger materials with fewer cracks. Pre-curing in steam conditions induced higher flexural strength (13.7 MPa) and water absorption (13.13%) for the geopolymer tiles. The highest Si/Al molar ratio in the amorphous portion of 5.78 induced the best flexural strength. The geopolymerization process showed microstructural changes associated with the appearance of fibrous Na-zeolite nanocrystals. The degree of geopolymerization and zeolite formation was enhanced by steam-curing, but the microstructural stress and heterogeneity induced by the reactions resulted in higher water absorption. Ongoing reactions of amorphization in the bulk material and further crystallization at the surface are documented after 6 months of curing. This first detailed study reveals that the production of geopolymer ceramics from brick waste is possible, but further optimization of the activating solution and curing parameters is required.
PB  - Elsevier Ltd.
T2  - Applied Clay Science
T1  - Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics
SP  - 106410
VL  - 218
DO  - 10.1016/j.clay.2022.106410
ER  - 

@article{
author = "Vidak Vasić, Milica and Terzić, Anja and Radovanović, Željko and Radojević, Zagorka and Warr, Laurence N.",
year = "2022",
abstract = "Geopolymerization was investigated as an alternative to traditional ceramic products by developing a more sustainable approach that avoids thermal treatment. The study presents the first known alkali-activation of the raw clay and waste clay brick mixture using the solid to liquid ratios of 2.33 and 2.78. Several experimental sets were prepared to harden under varying conditions (2–4 days drying in 60 °C–70 °C and 3 h steam-curing). Non-activated and activated samples were analyzed for their physical and chemical properties after 14, 21, and 28 days. The tile-shaped specimens exhibited better initial drying behavior than the cubes and produced stronger materials with fewer cracks. Pre-curing in steam conditions induced higher flexural strength (13.7 MPa) and water absorption (13.13%) for the geopolymer tiles. The highest Si/Al molar ratio in the amorphous portion of 5.78 induced the best flexural strength. The geopolymerization process showed microstructural changes associated with the appearance of fibrous Na-zeolite nanocrystals. The degree of geopolymerization and zeolite formation was enhanced by steam-curing, but the microstructural stress and heterogeneity induced by the reactions resulted in higher water absorption. Ongoing reactions of amorphization in the bulk material and further crystallization at the surface are documented after 6 months of curing. This first detailed study reveals that the production of geopolymer ceramics from brick waste is possible, but further optimization of the activating solution and curing parameters is required.",
publisher = "Elsevier Ltd.",
journal = "Applied Clay Science",
title = "Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics",
pages = "106410",
volume = "218",
doi = "10.1016/j.clay.2022.106410"
}

Vidak Vasić, M., Terzić, A., Radovanović, Ž., Radojević, Z.,& Warr, L. N.. (2022). Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics. in Applied Clay Science
Elsevier Ltd.., 218, 106410.
https://doi.org/10.1016/j.clay.2022.106410

Vidak Vasić M, Terzić A, Radovanović Ž, Radojević Z, Warr LN. Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics. in Applied Clay Science. 2022;218:106410.
doi:10.1016/j.clay.2022.106410 .

Vidak Vasić, Milica, Terzić, Anja, Radovanović, Željko, Radojević, Zagorka, Warr, Laurence N., "Alkali-activated geopolymerization of a low illitic raw clay and waste brick mixture. An alternative to traditional ceramics" in Applied Clay Science, 218 (2022):106410,
https://doi.org/10.1016/j.clay.2022.106410 . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Miličić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2020
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4557
AB  - Natural zeolite and bentonite were utilized as mineral additives in the mix-design of environmentally safe cement-based building materials. The adsorptive abilities of these two clayey raw materials, i.e. their affinity to immobilize heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ were investigated. Singleand multi-solutions of Zn2+, Ni2+, Pb2+ and Cu2+ were prepared for the experiment. The obtained results were submitted to analysis via pseudo-first and pseudo-second order kinetic models. Langmuir and Freundlich isotherms were analyzed. Bentonite exhibited better adsorption affinity than zeolite towards all four investigated cations. As a proof, a leaching test was conducted on seven different cement binders with different mineral additives (fly ash, zeolite, bentonite). The leachates obtained on the samples of cement with addition of fly ash and clay (either zeolite or bentonite) contained lower concentrations of Zn2+, Ni2+, Pb2+ and Cu2+ ions than leachates obtained on the samples of cement binder with fly ash solely as a result of adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites.
AB  - Prirodni zeolit i bentonit korišćeni su kao mineralni dodaci u mešavinskom dizajnu ekološki sigurnih građevinskih materijala na bazi cementa. Ispitane su adsorptivne sposobnosti ove dve glinene sirovine, tj. njihov afinitet da imobiliziraju jone teških metala Zn2+, Ni2+, Pb2+ i Cu2+. Za eksperiment su pripremljeni pojedinačni i multi-rastvori Zn2+, Ni2+, Pb2+ i Cu2+ . Dobijeni rezultati su analizirani pomoću kinetičkih modela pseudo prvog i pseudo drugog reda. Analizirane su izoterme Langmuira i Freundlicha. Bentonit je pokazao bolji adsorpcioni afinitet od zeolita prema sva četiri ispitivana katjona. Kao dokaz, ispitano je ispitivanje ispiranja na sedam različitih veziva za cement sa različitim mineralnim dodacima (leteći pepeo, zeolit, bentonit). Eluati dobijeni na uzorcima cementa sa dodatkom letećeg pepela i gline (bilo zeolita ili bentonita) sadržavale su niže koncentracije jona Zn2+, Ni2+, Pb2+ i Cu2+ u odnosu na eluat dobijen na uzorcima cementnog veziva sa letećim pepelom. Razlog za dobijanje ovakvih rezultata su adsorpcioni i hidratacioni mehanizmi koji imobiliziraju teške metale u cementnim kompozitima.
PB  - Engineering Society for Corrosion, Belgrade, Serbia
T2  - Zaštita materijala
T1  - Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials
T1  - Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa
EP  - 127
IS  - 2
SP  - 116
VL  - 61
DO  - 10.5937/zasmat2002116M
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Miličić, Ljiljana and Živojinović, Dragana",
year = "2020",
abstract = "Natural zeolite and bentonite were utilized as mineral additives in the mix-design of environmentally safe cement-based building materials. The adsorptive abilities of these two clayey raw materials, i.e. their affinity to immobilize heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ were investigated. Singleand multi-solutions of Zn2+, Ni2+, Pb2+ and Cu2+ were prepared for the experiment. The obtained results were submitted to analysis via pseudo-first and pseudo-second order kinetic models. Langmuir and Freundlich isotherms were analyzed. Bentonite exhibited better adsorption affinity than zeolite towards all four investigated cations. As a proof, a leaching test was conducted on seven different cement binders with different mineral additives (fly ash, zeolite, bentonite). The leachates obtained on the samples of cement with addition of fly ash and clay (either zeolite or bentonite) contained lower concentrations of Zn2+, Ni2+, Pb2+ and Cu2+ ions than leachates obtained on the samples of cement binder with fly ash solely as a result of adsorption and hydration mechanisms that immobilized heavy metals within cementitious composites., Prirodni zeolit i bentonit korišćeni su kao mineralni dodaci u mešavinskom dizajnu ekološki sigurnih građevinskih materijala na bazi cementa. Ispitane su adsorptivne sposobnosti ove dve glinene sirovine, tj. njihov afinitet da imobiliziraju jone teških metala Zn2+, Ni2+, Pb2+ i Cu2+. Za eksperiment su pripremljeni pojedinačni i multi-rastvori Zn2+, Ni2+, Pb2+ i Cu2+ . Dobijeni rezultati su analizirani pomoću kinetičkih modela pseudo prvog i pseudo drugog reda. Analizirane su izoterme Langmuira i Freundlicha. Bentonit je pokazao bolji adsorpcioni afinitet od zeolita prema sva četiri ispitivana katjona. Kao dokaz, ispitano je ispitivanje ispiranja na sedam različitih veziva za cement sa različitim mineralnim dodacima (leteći pepeo, zeolit, bentonit). Eluati dobijeni na uzorcima cementa sa dodatkom letećeg pepela i gline (bilo zeolita ili bentonita) sadržavale su niže koncentracije jona Zn2+, Ni2+, Pb2+ i Cu2+ u odnosu na eluat dobijen na uzorcima cementnog veziva sa letećim pepelom. Razlog za dobijanje ovakvih rezultata su adsorpcioni i hidratacioni mehanizmi koji imobiliziraju teške metale u cementnim kompozitima.",
publisher = "Engineering Society for Corrosion, Belgrade, Serbia",
journal = "Zaštita materijala",
title = "Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials, Imobilizacija teških metalnih jona Zn2+, Ni2+, Pb2+ i Cu2+ u strukturi materijala na bazi cementa",
pages = "127-116",
number = "2",
volume = "61",
doi = "10.5937/zasmat2002116M"
}

Mijatović, N., Terzić, A., Miličić, L.,& Živojinović, D.. (2020). Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials. in Zaštita materijala
Engineering Society for Corrosion, Belgrade, Serbia., 61(2), 116-127.
https://doi.org/10.5937/zasmat2002116M

Mijatović N, Terzić A, Miličić L, Živojinović D. Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials. in Zaštita materijala. 2020;61(2):116-127.
doi:10.5937/zasmat2002116M .

Mijatović, Nevenka, Terzić, Anja, Miličić, Ljiljana, Živojinović, Dragana, "Immobilization of heavy metal ions Zn2+, Ni2+, Pb2+ and Cu2+ in the structure of cement-based materials" in Zaštita materijala, 61, no. 2 (2020):116-127,
https://doi.org/10.5937/zasmat2002116M . .

TY  - JOUR
AU  - Mijatović, Nevenka
AU  - Terzić, Anja
AU  - Pezo, Lato
AU  - Milicić, Ljiljana
AU  - Živojinović, Dragana
PY  - 2019
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5039
AB  - Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (≈1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.
PB  - Elsevier B.V.
T2  - Spectrochimica Acta - Part B Atomic Spectroscopy
T1  - Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites
SP  - 105729
VL  - 162
DO  - 10.1016/j.sab.2019.105729
ER  - 

@article{
author = "Mijatović, Nevenka and Terzić, Anja and Pezo, Lato and Milicić, Ljiljana and Živojinović, Dragana",
year = "2019",
abstract = "Adjustment and subsequent validation of energy-dispersive X-ray fluorescence (ED-XRF) method for cement based binders with addition of mineral raw materials (fly ash, zeolite and bentonite) was conducted. Eighteen chemical elements present in the material composition were analyzed: ten major elements (Si, Al, Fe, Ca, Mg, S, Na, K, Ti, P) and eight trace elements (Cr, Zn, Cu, As, Ni, Pb, Sr, Mn). Thirty-five samples of either certified reference materials or reference materials of cement, fly ash and clay were utilized during adjustment and optimization of the investigated ED-XRF procedure. The method was consecutively validated in terms of selectivity, precision, working range, linearity, accuracy, robustness, limits of detection and quantification. Thirty-two samples in total, i.e. three certified reference materials and twenty-nine reference materials, were simultaneously analyzed by ED-XRF and inductively coupled plasma optical emission spectrometry (ICP-OES). Comparison of the outputs of monitored methods showed infinitesimally small differences, as correlation coefficients were extremely good (≈1), which highlighted ED-XRF as highly satiable alternative for ICP-OES for the chemical analysis of cement binders.",
publisher = "Elsevier B.V.",
journal = "Spectrochimica Acta - Part B Atomic Spectroscopy",
title = "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites",
pages = "105729",
volume = "162",
doi = "10.1016/j.sab.2019.105729"
}

Mijatović, N., Terzić, A., Pezo, L., Milicić, L.,& Živojinović, D.. (2019). Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta - Part B Atomic Spectroscopy
Elsevier B.V.., 162, 105729.
https://doi.org/10.1016/j.sab.2019.105729

Mijatović N, Terzić A, Pezo L, Milicić L, Živojinović D. Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites. in Spectrochimica Acta - Part B Atomic Spectroscopy. 2019;162:105729.
doi:10.1016/j.sab.2019.105729 .

Mijatović, Nevenka, Terzić, Anja, Pezo, Lato, Milicić, Ljiljana, Živojinović, Dragana, "Validation of energy-dispersive X-ray fluorescence procedure for determination of major and trace elements present in the cement based composites" in Spectrochimica Acta - Part B Atomic Spectroscopy, 162 (2019):105729,
https://doi.org/10.1016/j.sab.2019.105729 . .

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Pavlović, Ljubica
AU  - Petrov, Milan
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5767
AB  - Mica and talc have wide areas of application as a raw material in a number of industrial branches. Mechanically activated mica has specific applications such as: capacitors, insulators, and pearlescent pigments. Talc is widely used as either a basic raw material or as filler. This paper presents a comparative analysis of mechanically activated samples of mica and talc in ultra-centrifugal mechano-activator "Retsch ZM-1". The following mechano-activator parameters were variable: number of rotor revolutions (rpm); sieve mesh size (mu m); current intensity (A). In addition, the following parameters were monitored: duration of mechanical activation, t (min); circumferential rotor speed, v (m/s); capacity of mechano-activator, Q (kg/h); and specific energy consumption, W-e (kW h/t). It was observed that effect of mechanical activation of mica and talc increased with an increase of the load and rotor revolution of ultra-centrifugal mechano-activator. Both mica and talc were successfully treated by mechanical activation procedure. In the processing of mica, mechanical activation is suggested to be applied as a post-treatment, and in the talc processing as a pre-treatment, as the high quality talc is obtained by means of hydrometallurgical concentration method.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Comparative kinetic study of mechanical activation process of mica and talc for industrial application
EP  - 190
SP  - 181
VL  - 59
DO  - 10.1016/j.compositesb.2013.12.003
ER  - 

@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Pavlović, Ljubica and Petrov, Milan",
year = "2014",
abstract = "Mica and talc have wide areas of application as a raw material in a number of industrial branches. Mechanically activated mica has specific applications such as: capacitors, insulators, and pearlescent pigments. Talc is widely used as either a basic raw material or as filler. This paper presents a comparative analysis of mechanically activated samples of mica and talc in ultra-centrifugal mechano-activator "Retsch ZM-1". The following mechano-activator parameters were variable: number of rotor revolutions (rpm); sieve mesh size (mu m); current intensity (A). In addition, the following parameters were monitored: duration of mechanical activation, t (min); circumferential rotor speed, v (m/s); capacity of mechano-activator, Q (kg/h); and specific energy consumption, W-e (kW h/t). It was observed that effect of mechanical activation of mica and talc increased with an increase of the load and rotor revolution of ultra-centrifugal mechano-activator. Both mica and talc were successfully treated by mechanical activation procedure. In the processing of mica, mechanical activation is suggested to be applied as a post-treatment, and in the talc processing as a pre-treatment, as the high quality talc is obtained by means of hydrometallurgical concentration method.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Comparative kinetic study of mechanical activation process of mica and talc for industrial application",
pages = "190-181",
volume = "59",
doi = "10.1016/j.compositesb.2013.12.003"
}

Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Pavlović, L.,& Petrov, M.. (2014). Comparative kinetic study of mechanical activation process of mica and talc for industrial application. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 59, 181-190.
https://doi.org/10.1016/j.compositesb.2013.12.003

Andrić L, Terzić A, Aćimović-Pavlović Z, Pavlović L, Petrov M. Comparative kinetic study of mechanical activation process of mica and talc for industrial application. in Composites Part B-Engineering. 2014;59:181-190.
doi:10.1016/j.compositesb.2013.12.003 .

Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Pavlović, Ljubica, Petrov, Milan, "Comparative kinetic study of mechanical activation process of mica and talc for industrial application" in Composites Part B-Engineering, 59 (2014):181-190,
https://doi.org/10.1016/j.compositesb.2013.12.003 . .

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Pavlović, Ljubica
AU  - Petrov, Milan
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5764
AB  - The efficiency of talc mechanical activation by means of two different mechano-activators centrifugal and attrition mill is investigated in this study and the comparative analysis of the characteristics of obtained talc powders is presented. A new approach for obtaining high-grade talc concentrate with low Fe2O3 content is achieved through effect of mechanical activation of talc accompanied by hydrometallurgical process. The applied mechanical activation process conditions of ultra-centrifugal mill were defined by number of rotor revolutions, sieve mesh size, and current intensity. These operating parameters of the ultra-centrifugal mill were variable. Ultra fine grinding of talc in attrition mill (attritor) was carried out in various time intervals - from 5 to 15 min. The following technological parameters of the mechanical activation were monitored: time of mechanical activation, circumferential rotor speed, capacity of ultra-centrifugal mill, and specific energy consumption. The investigation was based on a kinetic model. The structure and behavior of activated samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, and differential thermal analysis (DTA).
PB  - Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw
T2  - Physicochemical Problems of Mineral Processing
T1  - Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill
EP  - 452
IS  - 2
SP  - 433
VL  - 50
DO  - 10.5277/ppmp140202
ER  - 

@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Pavlović, Ljubica and Petrov, Milan",
year = "2014",
abstract = "The efficiency of talc mechanical activation by means of two different mechano-activators centrifugal and attrition mill is investigated in this study and the comparative analysis of the characteristics of obtained talc powders is presented. A new approach for obtaining high-grade talc concentrate with low Fe2O3 content is achieved through effect of mechanical activation of talc accompanied by hydrometallurgical process. The applied mechanical activation process conditions of ultra-centrifugal mill were defined by number of rotor revolutions, sieve mesh size, and current intensity. These operating parameters of the ultra-centrifugal mill were variable. Ultra fine grinding of talc in attrition mill (attritor) was carried out in various time intervals - from 5 to 15 min. The following technological parameters of the mechanical activation were monitored: time of mechanical activation, circumferential rotor speed, capacity of ultra-centrifugal mill, and specific energy consumption. The investigation was based on a kinetic model. The structure and behavior of activated samples were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) analysis, and differential thermal analysis (DTA).",
publisher = "Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw",
journal = "Physicochemical Problems of Mineral Processing",
title = "Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill",
pages = "452-433",
number = "2",
volume = "50",
doi = "10.5277/ppmp140202"
}

Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Pavlović, L.,& Petrov, M.. (2014). Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill. in Physicochemical Problems of Mineral Processing
Oficyna Wydawnicza Politechniki Wroclawskiej, Wroclaw., 50(2), 433-452.
https://doi.org/10.5277/ppmp140202

Andrić L, Terzić A, Aćimović-Pavlović Z, Pavlović L, Petrov M. Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill. in Physicochemical Problems of Mineral Processing. 2014;50(2):433-452.
doi:10.5277/ppmp140202 .

Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Pavlović, Ljubica, Petrov, Milan, "Comparative analysis of process parameters of talc mechanical activation in centrifugal and attrition mill" in Physicochemical Problems of Mineral Processing, 50, no. 2 (2014):433-452,
https://doi.org/10.5277/ppmp140202 . .

TY  - JOUR
AU  - Aćimović, Zagorka
AU  - Terzić, Anja
AU  - Andrić, Ljubiša
AU  - Pavlović, Ljubica
AU  - Pavlović, Marko
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5675
AB  - This work investigated the possibility of developing new chromite-based refractory coatings for hot metal casting applications. The coating composition and rheological properties were optimized by careful choice of binding agents and addition of a suspension maintenance agent in the coating. Different solvents (water and isopropyl alcohol) and casting methods were used in the tests. Chromite was used as refractory filler in both the water- And alcohol-based coating compositions. The chromite was examined by X-ray diffraction analysis and scanning electron microscopy. The chromite shape and grain size were analysed visually with the aid of the OZARIA 2.5 PC image analysis package. Test samples were cast using sand moulds and by the method of expandable patterns using a polymer model, also known as the "lost foam" casting process. The investigation demonstrated that water- And alcohol-based coatings have positive influence on the surface quality, structural and mechanical properties of alloy castings made with both casting processes.
PB  - Verlag Schmidt GmbH
T2  - InterCeram: International Ceramic Review
T1  - Application of chromite in the production of refractory coatings
EP  - 293
IS  - 4
SP  - 290
VL  - 62
UR  - https://hdl.handle.net/21.15107/rcub_rims_221
ER  - 

@article{
author = "Aćimović, Zagorka and Terzić, Anja and Andrić, Ljubiša and Pavlović, Ljubica and Pavlović, Marko",
year = "2013",
abstract = "This work investigated the possibility of developing new chromite-based refractory coatings for hot metal casting applications. The coating composition and rheological properties were optimized by careful choice of binding agents and addition of a suspension maintenance agent in the coating. Different solvents (water and isopropyl alcohol) and casting methods were used in the tests. Chromite was used as refractory filler in both the water- And alcohol-based coating compositions. The chromite was examined by X-ray diffraction analysis and scanning electron microscopy. The chromite shape and grain size were analysed visually with the aid of the OZARIA 2.5 PC image analysis package. Test samples were cast using sand moulds and by the method of expandable patterns using a polymer model, also known as the "lost foam" casting process. The investigation demonstrated that water- And alcohol-based coatings have positive influence on the surface quality, structural and mechanical properties of alloy castings made with both casting processes.",
publisher = "Verlag Schmidt GmbH",
journal = "InterCeram: International Ceramic Review",
title = "Application of chromite in the production of refractory coatings",
pages = "293-290",
number = "4",
volume = "62",
url = "https://hdl.handle.net/21.15107/rcub_rims_221"
}

Aćimović, Z., Terzić, A., Andrić, L., Pavlović, L.,& Pavlović, M.. (2013). Application of chromite in the production of refractory coatings. in InterCeram: International Ceramic Review
Verlag Schmidt GmbH., 62(4), 290-293.
https://hdl.handle.net/21.15107/rcub_rims_221

Aćimović Z, Terzić A, Andrić L, Pavlović L, Pavlović M. Application of chromite in the production of refractory coatings. in InterCeram: International Ceramic Review. 2013;62(4):290-293.
https://hdl.handle.net/21.15107/rcub_rims_221 .

Aćimović, Zagorka, Terzić, Anja, Andrić, Ljubiša, Pavlović, Ljubica, Pavlović, Marko, "Application of chromite in the production of refractory coatings" in InterCeram: International Ceramic Review, 62, no. 4 (2013):290-293,
https://hdl.handle.net/21.15107/rcub_rims_221 .

TY  - JOUR
AU  - Andrić, Ljubiša
AU  - Terzić, Anja
AU  - Aćimović-Pavlović, Zagorka
AU  - Trumić, Milan
AU  - Petrov, Milan
AU  - Pavlović, Ljubica
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5087
AB  - This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.
PB  - Hindawi Publishing Corporation
T2  - Advances in Materials Science and Engineering
T1  - A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill
SP  - 543857
VL  - 2013
DO  - 10.1155/2013/543857
ER  - 

@article{
author = "Andrić, Ljubiša and Terzić, Anja and Aćimović-Pavlović, Zagorka and Trumić, Milan and Petrov, Milan and Pavlović, Ljubica",
year = "2013",
abstract = "This paper presents results of the research of micronization grinding of dry mica in a planetary ball mill. Investigation was conducted in order to improve the quality and to obtain clearly defined properties and characteristics of mica powder. The micronization grinding of dry mica was performed in four time periods: 30, 60, 120, and 360 minutes. The micronized powder was investigated by means of differential thermal and thermogravimetric analyses, analysis of the degree of micronization, the specific surface area analysis, and X-ray diffraction analysis. The achieved results pointed out that dry mica micronization grinding which exceeds 360 minutes is recommended for this type of mill. However, it was also shown that the micronized mica produced by means of planetary ball mill after extra long periods of micronization grinding can pass into amorphous state.",
publisher = "Hindawi Publishing Corporation",
journal = "Advances in Materials Science and Engineering",
title = "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill",
pages = "543857",
volume = "2013",
doi = "10.1155/2013/543857"
}

Andrić, L., Terzić, A., Aćimović-Pavlović, Z., Trumić, M., Petrov, M.,& Pavlović, L.. (2013). A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering
Hindawi Publishing Corporation., 2013, 543857.
https://doi.org/10.1155/2013/543857

Andrić L, Terzić A, Aćimović-Pavlović Z, Trumić M, Petrov M, Pavlović L. A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill. in Advances in Materials Science and Engineering. 2013;2013:543857.
doi:10.1155/2013/543857 .

Andrić, Ljubiša, Terzić, Anja, Aćimović-Pavlović, Zagorka, Trumić, Milan, Petrov, Milan, Pavlović, Ljubica, "A Kinetic Study of Micronization Grinding of Dry Mica in a Planetary Ball Mill" in Advances in Materials Science and Engineering, 2013 (2013):543857,
https://doi.org/10.1155/2013/543857 . .

TY  - JOUR
AU  - Terzić, Anja
AU  - Radojević, Zagorka
AU  - Miličić, Ljiljana
AU  - Pavlović, Ljubica
AU  - Aćimović, Zagorka
PY  - 2012
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5697
AB  - Odlaganje letećeg pepela dobijenog u procesu sagorevanja uglja u termo-elektranama predstavlja veliki rizik za prirodnu sredinu zbog mogućnosti luženja opasnih čestica kao što su toksični metali. Takođe, opasnost od izluživanja je prisutna čak i kada je leteći pepeo ugrađen u konstukcioni kompozit. Leteći pepeli sa različitih deponija su upotrebljeni za spravljanje uzoraka različitih kompozita (malter, beton ili opeka) pri čemu na pepelu nije sproveden nikakav fizički ili termički pred-tretman. Ispitivano je luženje potencijalno toksičnih elemenata prisutnih u proizvodima na bazi letećeg pepela. Praćeno je izluživanje i mogući uticaj na prirodnu sredinu 11 potencijalno opasnih elemenata: Pb, Cd, Zn, Cu, Ni, Cr, Hg, As, Ba, Sb i Se. Sprovedeno je detaljno istraživanje fizičko-hemijskih svojstava letećeg pepela, sa posebnim naglaskom na ispitivanju hemijskog sastava i prisutnosti elemenata u tragovima. Fizičko-hemijska svojstva pepela su ispitivana sledećim metodama: X-ray fluorescenicija, difrakciona termička analiza i X-ray difrakciona metoda. Skenirajući elektronski mikroskop je primenjen u mikrostukturnoj analizi. Rezultati su pokazali da se većina elemenata lakše izlužuje iz pepela nego kompozita spravljenih na bazi pepela. Izluživanje svih ispitivanih toksičnih elemenata je bilo u dozvoljenim granicama što znači da se ispitivani leteći pepeo može upotrebiti u proizvodnji konstrukcionih materijala.
AB  - The disposal of fly ash generated in coal based power-plants may pose a significant risk to the environment due to the possible leaching of hazardous pollutants, such as toxic metals. Also, there is a risk of leaching even when fly ash is built in the construction composites. Fly ashes from various landfills were applied in several composite samples (mortar, concrete and brick) without any physical or thermal pre-treatment. The leachability of the potentially toxic pollutants from the fly ash based products was investigated. The leaching behaviour and potential environmental impact of 11 potentially hazardous elements was tracked: Pb, Cd, Zn, Cu, Ni, Cr, Hg, As, Ba, Sb and Se. A detailed study of physico-chemical characteristics of the fly ash, with an accent on trace elements and the chemical composition investigation is included. Physicochemical properties of fly ash were investigated by means of X-ray fluorescence, differential thermal analysis and X-ray diffraction methods. Scanning electron microscopy was used in microstructure analysis. The results show that most of the elements are more easily leachable from the fly ash in comparison to the fly ash based composites. The leaching of investigated pollutants is within allowed range thus investigated fly ashes can be reused in construction materials production.
PB  - Savez hemijskih inženjera, Beograd
T2  - Chemical Industry and Chemical Engineering Quarterly / CICEQ
T1  - Luženje potencijalno toksičnih elemenata iz kompozita na bazi otpadnih sirovina
T1  - Leaching of the potentially toxic pollutants from composites based on waste raw material
EP  - 383
IS  - 3
SP  - 373
VL  - 18
DO  - 10.2298/CICEQ111128013T
ER  - 

@article{
author = "Terzić, Anja and Radojević, Zagorka and Miličić, Ljiljana and Pavlović, Ljubica and Aćimović, Zagorka",
year = "2012",
abstract = "Odlaganje letećeg pepela dobijenog u procesu sagorevanja uglja u termo-elektranama predstavlja veliki rizik za prirodnu sredinu zbog mogućnosti luženja opasnih čestica kao što su toksični metali. Takođe, opasnost od izluživanja je prisutna čak i kada je leteći pepeo ugrađen u konstukcioni kompozit. Leteći pepeli sa različitih deponija su upotrebljeni za spravljanje uzoraka različitih kompozita (malter, beton ili opeka) pri čemu na pepelu nije sproveden nikakav fizički ili termički pred-tretman. Ispitivano je luženje potencijalno toksičnih elemenata prisutnih u proizvodima na bazi letećeg pepela. Praćeno je izluživanje i mogući uticaj na prirodnu sredinu 11 potencijalno opasnih elemenata: Pb, Cd, Zn, Cu, Ni, Cr, Hg, As, Ba, Sb i Se. Sprovedeno je detaljno istraživanje fizičko-hemijskih svojstava letećeg pepela, sa posebnim naglaskom na ispitivanju hemijskog sastava i prisutnosti elemenata u tragovima. Fizičko-hemijska svojstva pepela su ispitivana sledećim metodama: X-ray fluorescenicija, difrakciona termička analiza i X-ray difrakciona metoda. Skenirajući elektronski mikroskop je primenjen u mikrostukturnoj analizi. Rezultati su pokazali da se većina elemenata lakše izlužuje iz pepela nego kompozita spravljenih na bazi pepela. Izluživanje svih ispitivanih toksičnih elemenata je bilo u dozvoljenim granicama što znači da se ispitivani leteći pepeo može upotrebiti u proizvodnji konstrukcionih materijala., The disposal of fly ash generated in coal based power-plants may pose a significant risk to the environment due to the possible leaching of hazardous pollutants, such as toxic metals. Also, there is a risk of leaching even when fly ash is built in the construction composites. Fly ashes from various landfills were applied in several composite samples (mortar, concrete and brick) without any physical or thermal pre-treatment. The leachability of the potentially toxic pollutants from the fly ash based products was investigated. The leaching behaviour and potential environmental impact of 11 potentially hazardous elements was tracked: Pb, Cd, Zn, Cu, Ni, Cr, Hg, As, Ba, Sb and Se. A detailed study of physico-chemical characteristics of the fly ash, with an accent on trace elements and the chemical composition investigation is included. Physicochemical properties of fly ash were investigated by means of X-ray fluorescence, differential thermal analysis and X-ray diffraction methods. Scanning electron microscopy was used in microstructure analysis. The results show that most of the elements are more easily leachable from the fly ash in comparison to the fly ash based composites. The leaching of investigated pollutants is within allowed range thus investigated fly ashes can be reused in construction materials production.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Chemical Industry and Chemical Engineering Quarterly / CICEQ",
title = "Luženje potencijalno toksičnih elemenata iz kompozita na bazi otpadnih sirovina, Leaching of the potentially toxic pollutants from composites based on waste raw material",
pages = "383-373",
number = "3",
volume = "18",
doi = "10.2298/CICEQ111128013T"
}

Terzić, A., Radojević, Z., Miličić, L., Pavlović, L.,& Aćimović, Z.. (2012). Luženje potencijalno toksičnih elemenata iz kompozita na bazi otpadnih sirovina. in Chemical Industry and Chemical Engineering Quarterly / CICEQ
Savez hemijskih inženjera, Beograd., 18(3), 373-383.
https://doi.org/10.2298/CICEQ111128013T

Terzić A, Radojević Z, Miličić L, Pavlović L, Aćimović Z. Luženje potencijalno toksičnih elemenata iz kompozita na bazi otpadnih sirovina. in Chemical Industry and Chemical Engineering Quarterly / CICEQ. 2012;18(3):373-383.
doi:10.2298/CICEQ111128013T .

Terzić, Anja, Radojević, Zagorka, Miličić, Ljiljana, Pavlović, Ljubica, Aćimović, Zagorka, "Luženje potencijalno toksičnih elemenata iz kompozita na bazi otpadnih sirovina" in Chemical Industry and Chemical Engineering Quarterly / CICEQ, 18, no. 3 (2012):373-383,
https://doi.org/10.2298/CICEQ111128013T . .