TY  - CHAP
AU  - Vlahović, Milica
AU  - Jovanić, Predrag
AU  - Martinović, Sanja
AU  - Volkov-Husović, Tatjana
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2576
AB  - Based on the nature of the matrix material, modern composites can be generally classified into three categories: polymer matrix composites, metal matrix composites, and ceramic matrix composites. Polymer matrix composites are not as strong or heat-resistant as metal matrix and ceramic matrix composites and therefore are restricted to secondary structures in which operating temperatures are lower than 300° C while for higher temperatures, metal matrix and ceramic matrix composites are required. Polymeric materials based on inorganic components can play an important role in various technological processes but their production on an industrial scale is still problematic. However, inorganic polymers, in combination with other materials can generate composite materials of very high quality and possibilities of applications. Among plenty of inorganic materials that can generate polymer chains, special attention should be paid to sulfur. One of the most popular applications of waste sulfur from the oil refining process is to produce a modified sulfur binder, which is predominantly implemented in different compositions of sulfur- polymer matrix composite materials used for diverse applications. Using sulfur as a binder is based on its physical and chemical characteristics: chemical passivity, excellent resistance to aggressive agents (mainly acids and salt solutions, but not bases) and hydrophobic properties. Sulfur implementation for composites production has started with using unmodified sulfur as a binder. However, despite excellent mechanical properties after preparation, samples exhibited low stability, so spalling and failure occurred after a short period. The development of modified sulfur binder contributed to better endurance of sulfur- polymer matrix composites, which focused its application for roads construction and repairing and as a building material. Sulfur itself tends to polymerize to a large extent while chemical modification increases this tendency or prolongs the time required for the polymerization. Except the prevention of sulfur transformation from monoclinic to orthorhombic form, the degree of sulfur polymerization is increased and long chains are created due to modification. Sulfur- polymer matrix composites are thermoplastic materials made of mineral aggregate and filler, with sulfur as a binder (instead of cement and water) at temperature above the hardening point of sulfur (120 °C). The proportion of aggregate, filler and binder for the preparation of sulfur- polymer matrix composite mixture may vary depending on the application. The choice of filler is important because it forms with sulfur paste that coats and binds the aggregate particles. In this chapter, various fillers were used for the production of sulfur- polymer matrix composite samples: talc, alumina, microsilica and fly ash. Durability of the obtained sulfur- polymer matrix composite samples was investigated under influence of acids (hydrochloric and sulfuric acids) and salt (sodium chloride) by monitoring their physico-mechanical characteristics. It was concluded that the used filler had influence on the behavior of the sulfur- polymer composite samples in the investigated environments.
T2  - Polymer-Matrix Composites: Types, Applications and Performance
T1  - Behavior of sulfur-polymer matrix composites with different fillers under acid and salt influence
EP  - 240
SP  - 215
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2576
ER  - 

@inbook{
author = "Vlahović, Milica and Jovanić, Predrag and Martinović, Sanja and Volkov-Husović, Tatjana",
year = "2014",
abstract = "Based on the nature of the matrix material, modern composites can be generally classified into three categories: polymer matrix composites, metal matrix composites, and ceramic matrix composites. Polymer matrix composites are not as strong or heat-resistant as metal matrix and ceramic matrix composites and therefore are restricted to secondary structures in which operating temperatures are lower than 300° C while for higher temperatures, metal matrix and ceramic matrix composites are required. Polymeric materials based on inorganic components can play an important role in various technological processes but their production on an industrial scale is still problematic. However, inorganic polymers, in combination with other materials can generate composite materials of very high quality and possibilities of applications. Among plenty of inorganic materials that can generate polymer chains, special attention should be paid to sulfur. One of the most popular applications of waste sulfur from the oil refining process is to produce a modified sulfur binder, which is predominantly implemented in different compositions of sulfur- polymer matrix composite materials used for diverse applications. Using sulfur as a binder is based on its physical and chemical characteristics: chemical passivity, excellent resistance to aggressive agents (mainly acids and salt solutions, but not bases) and hydrophobic properties. Sulfur implementation for composites production has started with using unmodified sulfur as a binder. However, despite excellent mechanical properties after preparation, samples exhibited low stability, so spalling and failure occurred after a short period. The development of modified sulfur binder contributed to better endurance of sulfur- polymer matrix composites, which focused its application for roads construction and repairing and as a building material. Sulfur itself tends to polymerize to a large extent while chemical modification increases this tendency or prolongs the time required for the polymerization. Except the prevention of sulfur transformation from monoclinic to orthorhombic form, the degree of sulfur polymerization is increased and long chains are created due to modification. Sulfur- polymer matrix composites are thermoplastic materials made of mineral aggregate and filler, with sulfur as a binder (instead of cement and water) at temperature above the hardening point of sulfur (120 °C). The proportion of aggregate, filler and binder for the preparation of sulfur- polymer matrix composite mixture may vary depending on the application. The choice of filler is important because it forms with sulfur paste that coats and binds the aggregate particles. In this chapter, various fillers were used for the production of sulfur- polymer matrix composite samples: talc, alumina, microsilica and fly ash. Durability of the obtained sulfur- polymer matrix composite samples was investigated under influence of acids (hydrochloric and sulfuric acids) and salt (sodium chloride) by monitoring their physico-mechanical characteristics. It was concluded that the used filler had influence on the behavior of the sulfur- polymer composite samples in the investigated environments.",
journal = "Polymer-Matrix Composites: Types, Applications and Performance",
booktitle = "Behavior of sulfur-polymer matrix composites with different fillers under acid and salt influence",
pages = "240-215",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2576"
}

Vlahović, M., Jovanić, P., Martinović, S.,& Volkov-Husović, T.. (2014). Behavior of sulfur-polymer matrix composites with different fillers under acid and salt influence. in Polymer-Matrix Composites: Types, Applications and Performance, 215-240.
https://hdl.handle.net/21.15107/rcub_technorep_2576

Vlahović M, Jovanić P, Martinović S, Volkov-Husović T. Behavior of sulfur-polymer matrix composites with different fillers under acid and salt influence. in Polymer-Matrix Composites: Types, Applications and Performance. 2014;:215-240.
https://hdl.handle.net/21.15107/rcub_technorep_2576 .

Vlahović, Milica, Jovanić, Predrag, Martinović, Sanja, Volkov-Husović, Tatjana, "Behavior of sulfur-polymer matrix composites with different fillers under acid and salt influence" in Polymer-Matrix Composites: Types, Applications and Performance (2014):215-240,
https://hdl.handle.net/21.15107/rcub_technorep_2576 .

TY  - CHAP
AU  - Vlahović, Milica
AU  - Martinović, Sanja
AU  - Jovanić, Predrag
AU  - Boljanac, Tamara
AU  - Volkov-Husović, Tatjana
PY  - 2014
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2569
AB  - The degradation of concrete structures, which progresses as time passes, is caused by external factors such as chemical, physical and mechanical interferences. In the case of chemical deterioration, various ions penetrate from the surface and then permeate into the concrete. Concrete structures are more or less porous materials, which have pores with a range of diameters. These pores have a detrimental influence on the strength of concrete and on the durability because they become permeation paths for other deterioration factors. Degradation of concrete structures often results in initiation and propagation of micro-cracks and other micro-defects. Since the presence of micro-cracks can significantly influence the mechanical properties of concrete, detection and control of micro-cracks is an essential issue for its durability. The prediction of material macroscopic properties requires a method capable of quantifying the material microstructural characteristics. Image analysis of the sample surface destruction is an important non-destructive method for assessing damage of the materials. Due to image analysis, more systematic and more accurate measurements have become possible. Therefore, more objective characterization of concrete structures from the aspect of material properties is provided. Evaluation of various concrete properties, as well as the effect of external influences on the microstructure of concrete, can be investigated using these non-destructive methodologies. The objective of the current study is focused on the quantifying surface cracks in concrete structures by using image analysis technique. In this chapter, application of image analysis in monitoring the level of surface destruction of sulfur concrete and Portland cement concrete subjected to corrosion conditions was presented. Macro- scale image analysis was realized with taking into account the total surface of the samples in order to monitor damage distribution at the surface. Micro- scale image analysis was applied to the specific areas of the sample surface, detected by the macro- scale image analysis as potential critical areas for further deterioration. Based on the image analysis results, the model for prediction of mechanical strength degradation was given. Mechanical strength measuring of the concrete samples was realized using classical, destructive testing method according to the standard. Agreement between calculated and experimental mechanical strength values confirmed that the proposed model was acceptable. The quantitative nature of this data and its regular collection can promote the establishment of deterioration criteria through the determination of correlation between deterioration factors and damage within concrete structures. In this context, this study constitutes an important contribution to a better understanding of image analysis, and how such tools can be used to assist in the assessment of the condition of concrete structures in order to provide more reliable concrete monitoring.
T2  - Advances in Image Analysis Research
T1  - Image analysis technique for evaluating damage evolution and predicting mechanical strength of concrete structures under corrosion conditions
EP  - 169
SP  - 147
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2569
ER  - 

@inbook{
author = "Vlahović, Milica and Martinović, Sanja and Jovanić, Predrag and Boljanac, Tamara and Volkov-Husović, Tatjana",
year = "2014",
abstract = "The degradation of concrete structures, which progresses as time passes, is caused by external factors such as chemical, physical and mechanical interferences. In the case of chemical deterioration, various ions penetrate from the surface and then permeate into the concrete. Concrete structures are more or less porous materials, which have pores with a range of diameters. These pores have a detrimental influence on the strength of concrete and on the durability because they become permeation paths for other deterioration factors. Degradation of concrete structures often results in initiation and propagation of micro-cracks and other micro-defects. Since the presence of micro-cracks can significantly influence the mechanical properties of concrete, detection and control of micro-cracks is an essential issue for its durability. The prediction of material macroscopic properties requires a method capable of quantifying the material microstructural characteristics. Image analysis of the sample surface destruction is an important non-destructive method for assessing damage of the materials. Due to image analysis, more systematic and more accurate measurements have become possible. Therefore, more objective characterization of concrete structures from the aspect of material properties is provided. Evaluation of various concrete properties, as well as the effect of external influences on the microstructure of concrete, can be investigated using these non-destructive methodologies. The objective of the current study is focused on the quantifying surface cracks in concrete structures by using image analysis technique. In this chapter, application of image analysis in monitoring the level of surface destruction of sulfur concrete and Portland cement concrete subjected to corrosion conditions was presented. Macro- scale image analysis was realized with taking into account the total surface of the samples in order to monitor damage distribution at the surface. Micro- scale image analysis was applied to the specific areas of the sample surface, detected by the macro- scale image analysis as potential critical areas for further deterioration. Based on the image analysis results, the model for prediction of mechanical strength degradation was given. Mechanical strength measuring of the concrete samples was realized using classical, destructive testing method according to the standard. Agreement between calculated and experimental mechanical strength values confirmed that the proposed model was acceptable. The quantitative nature of this data and its regular collection can promote the establishment of deterioration criteria through the determination of correlation between deterioration factors and damage within concrete structures. In this context, this study constitutes an important contribution to a better understanding of image analysis, and how such tools can be used to assist in the assessment of the condition of concrete structures in order to provide more reliable concrete monitoring.",
journal = "Advances in Image Analysis Research",
booktitle = "Image analysis technique for evaluating damage evolution and predicting mechanical strength of concrete structures under corrosion conditions",
pages = "169-147",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2569"
}

Vlahović, M., Martinović, S., Jovanić, P., Boljanac, T.,& Volkov-Husović, T.. (2014). Image analysis technique for evaluating damage evolution and predicting mechanical strength of concrete structures under corrosion conditions. in Advances in Image Analysis Research, 147-169.
https://hdl.handle.net/21.15107/rcub_technorep_2569

Vlahović M, Martinović S, Jovanić P, Boljanac T, Volkov-Husović T. Image analysis technique for evaluating damage evolution and predicting mechanical strength of concrete structures under corrosion conditions. in Advances in Image Analysis Research. 2014;:147-169.
https://hdl.handle.net/21.15107/rcub_technorep_2569 .

Vlahović, Milica, Martinović, Sanja, Jovanić, Predrag, Boljanac, Tamara, Volkov-Husović, Tatjana, "Image analysis technique for evaluating damage evolution and predicting mechanical strength of concrete structures under corrosion conditions" in Advances in Image Analysis Research (2014):147-169,
https://hdl.handle.net/21.15107/rcub_technorep_2569 .

TY  - CHAP
AU  - Vlahović, Milica
AU  - Jovanić, Predrag
AU  - Martinović, Sanja
AU  - Boljanac, Tamara
AU  - Volkov-Husović, Tatjana
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2263
AB  - Sulfur- polymer composites are high performance thermoplastic materials made of mineral aggregate, filler, and modified sulfur binder, instead of cement and water as in ordinary Portland cement- based composites at temperatures above the hardening point of sulfur (120°C). Using sulfur to obtain modified sulfur binder is based on its physicochemical characteristics. According to our terminology, modified sulfur binder considers a mixture of elemental sulfur and modified sulfur- sulfur polymer. Contemporary experience all over the world shows that composite materials with modified sulfur binder instead of cement and water have significant chemical and physico- mechanical advantages comparing with Portland cement- based composites. Modern trends of obtaining materials with desired properties are based on combining ingredients with different properties in different proportions, as well as on the application of various manufacturing procedures and additional material processing. Having in mind that while in service use, all materials are exposed to divers external influences that provoke some type of response, the idea of this research was to change the quality of sulfur- polymer composite by imposed chemical stress. Since sulfur- polymer composites are relatively new building materials that can potentially replace conventional material made with Portland cement as a binder in many branches of construction, it was found plausible to choose Portland cement- based composite as a referent material. In order to quantify the changes in the material structure as its response to the specific imposed stimulus, the scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) were applied. According to the applied analyses on micro level, it can be concluded that the initial structure of sulfur- polymer composite was rearranged. As a macro level result material with better resistance to chemically imposed stress compared with the referent material was obtained.
T2  - New Developments in Polymer Composites Research
T1  - Influence of chemical stress on sulfur-polymer composite structure
EP  - 278
SP  - 257
UR  - https://hdl.handle.net/21.15107/rcub_technorep_2263
ER  - 

@inbook{
author = "Vlahović, Milica and Jovanić, Predrag and Martinović, Sanja and Boljanac, Tamara and Volkov-Husović, Tatjana",
year = "2013",
abstract = "Sulfur- polymer composites are high performance thermoplastic materials made of mineral aggregate, filler, and modified sulfur binder, instead of cement and water as in ordinary Portland cement- based composites at temperatures above the hardening point of sulfur (120°C). Using sulfur to obtain modified sulfur binder is based on its physicochemical characteristics. According to our terminology, modified sulfur binder considers a mixture of elemental sulfur and modified sulfur- sulfur polymer. Contemporary experience all over the world shows that composite materials with modified sulfur binder instead of cement and water have significant chemical and physico- mechanical advantages comparing with Portland cement- based composites. Modern trends of obtaining materials with desired properties are based on combining ingredients with different properties in different proportions, as well as on the application of various manufacturing procedures and additional material processing. Having in mind that while in service use, all materials are exposed to divers external influences that provoke some type of response, the idea of this research was to change the quality of sulfur- polymer composite by imposed chemical stress. Since sulfur- polymer composites are relatively new building materials that can potentially replace conventional material made with Portland cement as a binder in many branches of construction, it was found plausible to choose Portland cement- based composite as a referent material. In order to quantify the changes in the material structure as its response to the specific imposed stimulus, the scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX) were applied. According to the applied analyses on micro level, it can be concluded that the initial structure of sulfur- polymer composite was rearranged. As a macro level result material with better resistance to chemically imposed stress compared with the referent material was obtained.",
journal = "New Developments in Polymer Composites Research",
booktitle = "Influence of chemical stress on sulfur-polymer composite structure",
pages = "278-257",
url = "https://hdl.handle.net/21.15107/rcub_technorep_2263"
}

Vlahović, M., Jovanić, P., Martinović, S., Boljanac, T.,& Volkov-Husović, T.. (2013). Influence of chemical stress on sulfur-polymer composite structure. in New Developments in Polymer Composites Research, 257-278.
https://hdl.handle.net/21.15107/rcub_technorep_2263

Vlahović M, Jovanić P, Martinović S, Boljanac T, Volkov-Husović T. Influence of chemical stress on sulfur-polymer composite structure. in New Developments in Polymer Composites Research. 2013;:257-278.
https://hdl.handle.net/21.15107/rcub_technorep_2263 .

Vlahović, Milica, Jovanić, Predrag, Martinović, Sanja, Boljanac, Tamara, Volkov-Husović, Tatjana, "Influence of chemical stress on sulfur-polymer composite structure" in New Developments in Polymer Composites Research (2013):257-278,
https://hdl.handle.net/21.15107/rcub_technorep_2263 .

TY  - JOUR
AU  - Vlahović, Milica M.
AU  - Jovanić, Predrag
AU  - Martinović, Sanja
AU  - Boljanac, Tamara
AU  - Volkov-Husović, Tatjana
PY  - 2013
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2494
AB  - In order to predict service life of the sulfur polymer composite, the samples were subjected to the induced destruction using 10% hydrochloric acid solution. Control specimens were prepared using Portland cement binder. Sulfur polymer composite showed limited mechanical strength and mass loss, while physico-mechanical properties of Portland cement composite regressed rapidly. The Image Pro Plus software was used for surface destruction monitoring. The simulations for composites were applied to the previously reported model for predicting the mechanical strength degradation during durability testing, based on the image analysis results. The results proved that the time gradient of structural change was useful for quantification of service life, therefore it can be accepted as a parameter that represents service life.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Part B-Engineering
T1  - Quantitative evaluation of sulfur-polymer matrix composite quality
EP  - 466
IS  - 1
SP  - 458
VL  - 44
DO  - 10.1016/j.compositesb.2012.04.005
ER  - 

@article{
author = "Vlahović, Milica M. and Jovanić, Predrag and Martinović, Sanja and Boljanac, Tamara and Volkov-Husović, Tatjana",
year = "2013",
abstract = "In order to predict service life of the sulfur polymer composite, the samples were subjected to the induced destruction using 10% hydrochloric acid solution. Control specimens were prepared using Portland cement binder. Sulfur polymer composite showed limited mechanical strength and mass loss, while physico-mechanical properties of Portland cement composite regressed rapidly. The Image Pro Plus software was used for surface destruction monitoring. The simulations for composites were applied to the previously reported model for predicting the mechanical strength degradation during durability testing, based on the image analysis results. The results proved that the time gradient of structural change was useful for quantification of service life, therefore it can be accepted as a parameter that represents service life.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Part B-Engineering",
title = "Quantitative evaluation of sulfur-polymer matrix composite quality",
pages = "466-458",
number = "1",
volume = "44",
doi = "10.1016/j.compositesb.2012.04.005"
}

Vlahović, M. M., Jovanić, P., Martinović, S., Boljanac, T.,& Volkov-Husović, T.. (2013). Quantitative evaluation of sulfur-polymer matrix composite quality. in Composites Part B-Engineering
Elsevier Sci Ltd, Oxford., 44(1), 458-466.
https://doi.org/10.1016/j.compositesb.2012.04.005

Vlahović MM, Jovanić P, Martinović S, Boljanac T, Volkov-Husović T. Quantitative evaluation of sulfur-polymer matrix composite quality. in Composites Part B-Engineering. 2013;44(1):458-466.
doi:10.1016/j.compositesb.2012.04.005 .

Vlahović, Milica M., Jovanić, Predrag, Martinović, Sanja, Boljanac, Tamara, Volkov-Husović, Tatjana, "Quantitative evaluation of sulfur-polymer matrix composite quality" in Composites Part B-Engineering, 44, no. 1 (2013):458-466,
https://doi.org/10.1016/j.compositesb.2012.04.005 . .

TY  - JOUR
AU  - Savić, Marina
AU  - Jovanović, Mića
AU  - Tanasijević, Jelena
AU  - Ocić, Ozren
AU  - Spasić, Aleksandar
AU  - Jovanić, Predrag
AU  - Nikolić, Ivan
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6331
AB  - Algoritam za redukciju otpada (eng. waste reduction algorithm – WAR) jeste metodologija
koja se može koristiti za procenu potencijalnog uticaja tehnoloških procesa na životnu
sredinu. Analizom pojedinačnih stupnjeva procesa proizvodnje dobijaju se podaci koji omogućavaju sagledavanje kritičnih segmenata. Cilj ovog rada je da se sagledaju kritične tačke
procesa proizvodnje bitumena sa stanovišta zaštite životne sredine. Definisanjem osnovnih
parametara algoritma WAR GUI (eng. waste reduction algorithm graphical user interface)
softverskog modela dobijene su kvantifikovane vrednosti potencijalnih uticaja na životnu
sredinu (eng. potential environmental impact – PEI) svakog pojedinačnog stupnja proizvodnog procesa, polazeći od procesa atmosferske destilacije, preko vakuum destilacije, do procesa dobijanja bitumena iz vakuum ostatka u postrojenju bitumena
PB  - Association of the Chemical Engineers of Serbia
T2  - Hemijska industrija
T1  - Waste reduction algorithm used as the case study of simulated bitumen production process
EP  - 204
IS  - 2
SP  - 197
VL  - 65
DO  - 10.2298/HEMIND101108011S
ER  - 

@article{
author = "Savić, Marina and Jovanović, Mića and Tanasijević, Jelena and Ocić, Ozren and Spasić, Aleksandar and Jovanić, Predrag and Nikolić, Ivan",
year = "2011",
abstract = "Algoritam za redukciju otpada (eng. waste reduction algorithm – WAR) jeste metodologija
koja se može koristiti za procenu potencijalnog uticaja tehnoloških procesa na životnu
sredinu. Analizom pojedinačnih stupnjeva procesa proizvodnje dobijaju se podaci koji omogućavaju sagledavanje kritičnih segmenata. Cilj ovog rada je da se sagledaju kritične tačke
procesa proizvodnje bitumena sa stanovišta zaštite životne sredine. Definisanjem osnovnih
parametara algoritma WAR GUI (eng. waste reduction algorithm graphical user interface)
softverskog modela dobijene su kvantifikovane vrednosti potencijalnih uticaja na životnu
sredinu (eng. potential environmental impact – PEI) svakog pojedinačnog stupnja proizvodnog procesa, polazeći od procesa atmosferske destilacije, preko vakuum destilacije, do procesa dobijanja bitumena iz vakuum ostatka u postrojenju bitumena",
publisher = "Association of the Chemical Engineers of Serbia",
journal = "Hemijska industrija",
title = "Waste reduction algorithm used as the case study of simulated bitumen production process",
pages = "204-197",
number = "2",
volume = "65",
doi = "10.2298/HEMIND101108011S"
}

Savić, M., Jovanović, M., Tanasijević, J., Ocić, O., Spasić, A., Jovanić, P.,& Nikolić, I.. (2011). Waste reduction algorithm used as the case study of simulated bitumen production process. in Hemijska industrija
Association of the Chemical Engineers of Serbia., 65(2), 197-204.
https://doi.org/10.2298/HEMIND101108011S

Savić M, Jovanović M, Tanasijević J, Ocić O, Spasić A, Jovanić P, Nikolić I. Waste reduction algorithm used as the case study of simulated bitumen production process. in Hemijska industrija. 2011;65(2):197-204.
doi:10.2298/HEMIND101108011S .

Savić, Marina, Jovanović, Mića, Tanasijević, Jelena, Ocić, Ozren, Spasić, Aleksandar, Jovanić, Predrag, Nikolić, Ivan, "Waste reduction algorithm used as the case study of simulated bitumen production process" in Hemijska industrija, 65, no. 2 (2011):197-204,
https://doi.org/10.2298/HEMIND101108011S . .

TY  - JOUR
AU  - Vlahović, Milica M.
AU  - Martinović, Sanja
AU  - Boljanac, Tamara
AU  - Jovanić, Predrag
AU  - Volkov-Husović, Tatjana
PY  - 2011
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1893
AB  - Durability of sulfur concrete with different fillers, as well as Portland cement concrete, was tested in the solutions of HCl, H(2)SO(4), and NaCl. Regarding mass changes, in the solutions of HCl and H(2)SO(4) sulfur concrete with talc and fly ash exhibited higher durability, while in NaCl samples with alumina and microsilica were better. The type of filler did not affect durability regarding compressive strength. Strength loss was higher in the solution of HCl comparing to H(2)SO(4), while negligible in NaCl which is in accordance with apparent porosity increase. Portland cement concrete after two months lost 20% of mass.
PB  - Elsevier Sci Ltd, Oxford
T2  - Construction and Building Materials
T1  - Durability of sulfur concrete in various aggressive environments
EP  - 3934
IS  - 10
SP  - 3926
VL  - 25
DO  - 10.1016/j.conbuildmat.2011.04.024
ER  - 

@article{
author = "Vlahović, Milica M. and Martinović, Sanja and Boljanac, Tamara and Jovanić, Predrag and Volkov-Husović, Tatjana",
year = "2011",
abstract = "Durability of sulfur concrete with different fillers, as well as Portland cement concrete, was tested in the solutions of HCl, H(2)SO(4), and NaCl. Regarding mass changes, in the solutions of HCl and H(2)SO(4) sulfur concrete with talc and fly ash exhibited higher durability, while in NaCl samples with alumina and microsilica were better. The type of filler did not affect durability regarding compressive strength. Strength loss was higher in the solution of HCl comparing to H(2)SO(4), while negligible in NaCl which is in accordance with apparent porosity increase. Portland cement concrete after two months lost 20% of mass.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Construction and Building Materials",
title = "Durability of sulfur concrete in various aggressive environments",
pages = "3934-3926",
number = "10",
volume = "25",
doi = "10.1016/j.conbuildmat.2011.04.024"
}

Vlahović, M. M., Martinović, S., Boljanac, T., Jovanić, P.,& Volkov-Husović, T.. (2011). Durability of sulfur concrete in various aggressive environments. in Construction and Building Materials
Elsevier Sci Ltd, Oxford., 25(10), 3926-3934.
https://doi.org/10.1016/j.conbuildmat.2011.04.024

Vlahović MM, Martinović S, Boljanac T, Jovanić P, Volkov-Husović T. Durability of sulfur concrete in various aggressive environments. in Construction and Building Materials. 2011;25(10):3926-3934.
doi:10.1016/j.conbuildmat.2011.04.024 .

Vlahović, Milica M., Martinović, Sanja, Boljanac, Tamara, Jovanić, Predrag, Volkov-Husović, Tatjana, "Durability of sulfur concrete in various aggressive environments" in Construction and Building Materials, 25, no. 10 (2011):3926-3934,
https://doi.org/10.1016/j.conbuildmat.2011.04.024 . .

TY  - JOUR
AU  - Pašalić, Snežana
AU  - Jovanić, Predrag
AU  - Bugarski, Branko
PY  - 2007
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1015
AB  - There are many developed strategies for evaluating emulsion stability, aimed at determining the life circle of emulsions. Most of them are based on rheological properties of emulsions. There are, however, very few based on direct emulsion observations. In this paper we present a developed method for the emulsion stability evaluation by direct observation of optical emulsion properties. We propose the fractal dimension approach as a stability quantification measure, The method is based on the measure of emulsion transmittance properties, which are directly dependent on the emulsion stability at the moment of measurement. The oil in water emulsion was used as a test emulsion. The system is classified as stable emulsion and our intention was to find the moment when it starts to break. Emulsion transmittance properties were measure applying a system for acquisition of visual information, which is based on a CCD camera and a fast PC configuration equipped with the capturing software. The acquired sets of visual information were analyzed by the OZARIA software package. The fractal dimensions were determined by the box counting method. For these experiments, 100 boxes of different sizes were used. Experimental emulsions were measured after 7, 14, 21 and 28 days from the moment of creation. A slight increase in fractal dimensions was observed, which indicates that the emulsions are still in the stable region, or from the fractal point of view emulsion are still regular and no significant irregularities were observed. From the first experiments the applied methodology proved to be sensitive enough to be used for emulsions stability evaluation.
PB  - 8th Conference of the Yugoslav Materials Research Society
T2  - Materials Science Forum
T1  - Emulsion stability evaluation using fractal dimensions approach
EP  - 182
SP  - 177
VL  - 555
DO  - 10.4028/0-87849-441-3.177
ER  - 

@article{
author = "Pašalić, Snežana and Jovanić, Predrag and Bugarski, Branko",
year = "2007",
abstract = "There are many developed strategies for evaluating emulsion stability, aimed at determining the life circle of emulsions. Most of them are based on rheological properties of emulsions. There are, however, very few based on direct emulsion observations. In this paper we present a developed method for the emulsion stability evaluation by direct observation of optical emulsion properties. We propose the fractal dimension approach as a stability quantification measure, The method is based on the measure of emulsion transmittance properties, which are directly dependent on the emulsion stability at the moment of measurement. The oil in water emulsion was used as a test emulsion. The system is classified as stable emulsion and our intention was to find the moment when it starts to break. Emulsion transmittance properties were measure applying a system for acquisition of visual information, which is based on a CCD camera and a fast PC configuration equipped with the capturing software. The acquired sets of visual information were analyzed by the OZARIA software package. The fractal dimensions were determined by the box counting method. For these experiments, 100 boxes of different sizes were used. Experimental emulsions were measured after 7, 14, 21 and 28 days from the moment of creation. A slight increase in fractal dimensions was observed, which indicates that the emulsions are still in the stable region, or from the fractal point of view emulsion are still regular and no significant irregularities were observed. From the first experiments the applied methodology proved to be sensitive enough to be used for emulsions stability evaluation.",
publisher = "8th Conference of the Yugoslav Materials Research Society",
journal = "Materials Science Forum",
title = "Emulsion stability evaluation using fractal dimensions approach",
pages = "182-177",
volume = "555",
doi = "10.4028/0-87849-441-3.177"
}

Pašalić, S., Jovanić, P.,& Bugarski, B.. (2007). Emulsion stability evaluation using fractal dimensions approach. in Materials Science Forum
8th Conference of the Yugoslav Materials Research Society., 555, 177-182.
https://doi.org/10.4028/0-87849-441-3.177

Pašalić S, Jovanić P, Bugarski B. Emulsion stability evaluation using fractal dimensions approach. in Materials Science Forum. 2007;555:177-182.
doi:10.4028/0-87849-441-3.177 .

Pašalić, Snežana, Jovanić, Predrag, Bugarski, Branko, "Emulsion stability evaluation using fractal dimensions approach" in Materials Science Forum, 555 (2007):177-182,
https://doi.org/10.4028/0-87849-441-3.177 . .

TY  - JOUR
AU  - Lazić, Marija S.
AU  - Simović, Kornelija
AU  - Mišković-Stanković, Vesna
AU  - Jovanić, Predrag
AU  - Kićević, Dušan
PY  - 2004
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/612
AB  - The influence of the deposition parameters on the porosity of thin alumina films electrophoretically deposited on steel from aqueous suspensions was investigated. The effects of the applied voltage, deposition time, suspension temperature and the solid content of the aqueous suspension on the porosity of the obtained alumina films have been determined using optical microscopy coupled with image analysis. It was shown that the lowest film porosity was obtained from a suspension containing 20 wt.% alumina powder at the lowest applied voltage (30 V), for a longer deposition time (10 min) using a suspension temperature of 30 ºC. This behavior can be explained by the smaller amount of hydrogen evolved on the cathode during the electrophoretic deposition process.
AB  - Ispitivan je uticaj parametara taloženja, i to napona taloženja, vremena talo ženja, temperature suspenzije i koncentracije čvrste faze u suspenziji, na poroznost kataforetski taloženih tankih filmova iz vodene suspenzije praha aluminijum-oksida na čeliku.Poroznost dobijenih filmova određivana je primenom metode optičke mikroskopije uz analizu slike. Na osnovu dobijenih rezultata pokazano je da je najmanja poroznost prevlake aluminijum-oksida na čeliku dobijena pri taloženju iz vodene suspenzije koncentracije 20 mas%, pri naponu taloženja 30 V, za vreme taloženja 10 minuta i pri temperaturi suspenzije 30 °C.Ovakvo ponašanje moguće je objasniti manjom količinom izdvojenog vodonika na katodi tokom elektroforetskog taloženja.
PB  - Serbian Chemical Society, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - The influence of the deposition parameters on the porosity of thin alumina films on steel
T1  - Uticaj parametara elektroforetskog taloženja praha aluminijum-oksida iz vodenih suspenzija na poroznost dobijenih tankih filmova na čeliku
EP  - 249
IS  - 3
SP  - 239
VL  - 69
UR  - https://hdl.handle.net/21.15107/rcub_technorep_612
ER  - 

@article{
author = "Lazić, Marija S. and Simović, Kornelija and Mišković-Stanković, Vesna and Jovanić, Predrag and Kićević, Dušan",
year = "2004",
abstract = "The influence of the deposition parameters on the porosity of thin alumina films electrophoretically deposited on steel from aqueous suspensions was investigated. The effects of the applied voltage, deposition time, suspension temperature and the solid content of the aqueous suspension on the porosity of the obtained alumina films have been determined using optical microscopy coupled with image analysis. It was shown that the lowest film porosity was obtained from a suspension containing 20 wt.% alumina powder at the lowest applied voltage (30 V), for a longer deposition time (10 min) using a suspension temperature of 30 ºC. This behavior can be explained by the smaller amount of hydrogen evolved on the cathode during the electrophoretic deposition process., Ispitivan je uticaj parametara taloženja, i to napona taloženja, vremena talo ženja, temperature suspenzije i koncentracije čvrste faze u suspenziji, na poroznost kataforetski taloženih tankih filmova iz vodene suspenzije praha aluminijum-oksida na čeliku.Poroznost dobijenih filmova određivana je primenom metode optičke mikroskopije uz analizu slike. Na osnovu dobijenih rezultata pokazano je da je najmanja poroznost prevlake aluminijum-oksida na čeliku dobijena pri taloženju iz vodene suspenzije koncentracije 20 mas%, pri naponu taloženja 30 V, za vreme taloženja 10 minuta i pri temperaturi suspenzije 30 °C.Ovakvo ponašanje moguće je objasniti manjom količinom izdvojenog vodonika na katodi tokom elektroforetskog taloženja.",
publisher = "Serbian Chemical Society, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "The influence of the deposition parameters on the porosity of thin alumina films on steel, Uticaj parametara elektroforetskog taloženja praha aluminijum-oksida iz vodenih suspenzija na poroznost dobijenih tankih filmova na čeliku",
pages = "249-239",
number = "3",
volume = "69",
url = "https://hdl.handle.net/21.15107/rcub_technorep_612"
}

Lazić, M. S., Simović, K., Mišković-Stanković, V., Jovanić, P.,& Kićević, D.. (2004). The influence of the deposition parameters on the porosity of thin alumina films on steel. in Journal of the Serbian Chemical Society
Serbian Chemical Society, Belgrade., 69(3), 239-249.
https://hdl.handle.net/21.15107/rcub_technorep_612

Lazić MS, Simović K, Mišković-Stanković V, Jovanić P, Kićević D. The influence of the deposition parameters on the porosity of thin alumina films on steel. in Journal of the Serbian Chemical Society. 2004;69(3):239-249.
https://hdl.handle.net/21.15107/rcub_technorep_612 .

Lazić, Marija S., Simović, Kornelija, Mišković-Stanković, Vesna, Jovanić, Predrag, Kićević, Dušan, "The influence of the deposition parameters on the porosity of thin alumina films on steel" in Journal of the Serbian Chemical Society, 69, no. 3 (2004):239-249,
https://hdl.handle.net/21.15107/rcub_technorep_612 .