TY  - CONF
AU  - Jelić, Ivana
AU  - Savić, Aleksandar R.
AU  - Miljojčić, Tatjana
AU  - Sljivic-Ivanovic, Marija
AU  - Dimović, Slavko
AU  - Janković, Marija
AU  - Stanić, Vojislav
AU  - Zakić, Dimitrije
AU  - Antonijevic, Dragi
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3279
AB  - The applicability of solid bricks waste in geopolymerization technique was considered. Waste samples were characterized in terms of mineralogical composition by XRD prior to mechanical testing. XRD analysis showed that both brick samples contained anorthite, wollastonite, and mullite as the main components. The compressive strength investigation was carried out by screening method with three geopolymer mixtures. Geopolymer mixtures were prepared with alkaline activators; the mixtures were poured into molds and air-dried for 28 days. The compressive strength of samples was measured according to the standard SRPS EN 12390-3:2010 for cubic samples. The compressive strength values ranged from 9.8 MPa for the newer solid brick, 10.2 MPa for the older solid brick, and 10.5 MPa for the solid brick mix waste geopolymer sample. The most likely underlying reason for the higher compressive strength results of the older solid brick and the mixed sample is their mineral composition, i.e. higher proportion of aluminosilicate. However, all samples showed satisfactory compressive strengths, and it represents an excellent basis for further research.
PB  - IRASA – International Research Academy of Science and Art  Belgrade
C3  - IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI V 2023 Book of Proceedings
T1  - Reuse of Solid Brick Waste Mix in Geopolymerization – a Preliminary Investigation
EP  - 422
SP  - 416
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3279
ER  - 

@conference{
author = "Jelić, Ivana and Savić, Aleksandar R. and Miljojčić, Tatjana and Sljivic-Ivanovic, Marija and Dimović, Slavko and Janković, Marija and Stanić, Vojislav and Zakić, Dimitrije and Antonijevic, Dragi",
year = "2023",
abstract = "The applicability of solid bricks waste in geopolymerization technique was considered. Waste samples were characterized in terms of mineralogical composition by XRD prior to mechanical testing. XRD analysis showed that both brick samples contained anorthite, wollastonite, and mullite as the main components. The compressive strength investigation was carried out by screening method with three geopolymer mixtures. Geopolymer mixtures were prepared with alkaline activators; the mixtures were poured into molds and air-dried for 28 days. The compressive strength of samples was measured according to the standard SRPS EN 12390-3:2010 for cubic samples. The compressive strength values ranged from 9.8 MPa for the newer solid brick, 10.2 MPa for the older solid brick, and 10.5 MPa for the solid brick mix waste geopolymer sample. The most likely underlying reason for the higher compressive strength results of the older solid brick and the mixed sample is their mineral composition, i.e. higher proportion of aluminosilicate. However, all samples showed satisfactory compressive strengths, and it represents an excellent basis for further research.",
publisher = "IRASA – International Research Academy of Science and Art  Belgrade",
journal = "IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI V 2023 Book of Proceedings",
title = "Reuse of Solid Brick Waste Mix in Geopolymerization – a Preliminary Investigation",
pages = "422-416",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3279"
}

Jelić, I., Savić, A. R., Miljojčić, T., Sljivic-Ivanovic, M., Dimović, S., Janković, M., Stanić, V., Zakić, D.,& Antonijevic, D.. (2023). Reuse of Solid Brick Waste Mix in Geopolymerization – a Preliminary Investigation. in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI V 2023 Book of Proceedings
IRASA – International Research Academy of Science and Art  Belgrade., 416-422.
https://hdl.handle.net/21.15107/rcub_grafar_3279

Jelić I, Savić AR, Miljojčić T, Sljivic-Ivanovic M, Dimović S, Janković M, Stanić V, Zakić D, Antonijevic D. Reuse of Solid Brick Waste Mix in Geopolymerization – a Preliminary Investigation. in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI V 2023 Book of Proceedings. 2023;:416-422.
https://hdl.handle.net/21.15107/rcub_grafar_3279 .

Jelić, Ivana, Savić, Aleksandar R., Miljojčić, Tatjana, Sljivic-Ivanovic, Marija, Dimović, Slavko, Janković, Marija, Stanić, Vojislav, Zakić, Dimitrije, Antonijevic, Dragi, "Reuse of Solid Brick Waste Mix in Geopolymerization – a Preliminary Investigation" in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI V 2023 Book of Proceedings (2023):416-422,
https://hdl.handle.net/21.15107/rcub_grafar_3279 .

TY  - CONF
AU  - Jelić, Ivana
AU  - Savić, Aleksandar R.
AU  - Miljojčić, Tatjana
AU  - Sljivic-Ivanovic, Marija
AU  - Janković, Marija
AU  - Dimović, Slavko
AU  - Zakić, Dimitrije
AU  - Antonijevic, Dragi
PY  - 2023
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/3278
AB  - The construction sector is responsible for approximately 39% of energy use and process-related carbon dioxide emissions. Mixing waste materials into concrete, as a substitute for cement 
and/or aggregate, increases energy efficiency and sustainability in general. Additionally, pressure 
on the environment is decreasing by reducing the amount of exploitation of natural raw materials. 
On the other hand, the rapid progress of the electronic industry has led to the generation of a large 
amount of electrical waste before the end of its useful life. Disposal of old monitors and TV screens, i.e. their cathode-ray tubes (CRT), represents a major problem for the environment because CRT waste is classified as hazardous due to its high lead content. This paper deals with an overview of investigations on CRT waste utilization in cement materials in order to increase sustainability and encourage a circular economy in the construction sector.
PB  - Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd
C3  - Proceedings / 11th International Conference on Renewable Electrical Power Sources
T1  - Cathode Ray Tube Waste Glass in Concrete Preparation - Increasing Sustainability
EP  - 315
SP  - 309
UR  - https://hdl.handle.net/21.15107/rcub_grafar_3278
ER  - 

@conference{
author = "Jelić, Ivana and Savić, Aleksandar R. and Miljojčić, Tatjana and Sljivic-Ivanovic, Marija and Janković, Marija and Dimović, Slavko and Zakić, Dimitrije and Antonijevic, Dragi",
year = "2023",
abstract = "The construction sector is responsible for approximately 39% of energy use and process-related carbon dioxide emissions. Mixing waste materials into concrete, as a substitute for cement 
and/or aggregate, increases energy efficiency and sustainability in general. Additionally, pressure 
on the environment is decreasing by reducing the amount of exploitation of natural raw materials. 
On the other hand, the rapid progress of the electronic industry has led to the generation of a large 
amount of electrical waste before the end of its useful life. Disposal of old monitors and TV screens, i.e. their cathode-ray tubes (CRT), represents a major problem for the environment because CRT waste is classified as hazardous due to its high lead content. This paper deals with an overview of investigations on CRT waste utilization in cement materials in order to increase sustainability and encourage a circular economy in the construction sector.",
publisher = "Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd",
journal = "Proceedings / 11th International Conference on Renewable Electrical Power Sources",
title = "Cathode Ray Tube Waste Glass in Concrete Preparation - Increasing Sustainability",
pages = "315-309",
url = "https://hdl.handle.net/21.15107/rcub_grafar_3278"
}

Jelić, I., Savić, A. R., Miljojčić, T., Sljivic-Ivanovic, M., Janković, M., Dimović, S., Zakić, D.,& Antonijevic, D.. (2023). Cathode Ray Tube Waste Glass in Concrete Preparation - Increasing Sustainability. in Proceedings / 11th International Conference on Renewable Electrical Power Sources
Union of Mechanical and   Electrotechnical Engineers and   Technicians of Serbia (SMEITS)  Society for Renewable Electrical   Power Sources  Kneza Miloša str. 7a/II,   11000 Beograd., 309-315.
https://hdl.handle.net/21.15107/rcub_grafar_3278

Jelić I, Savić AR, Miljojčić T, Sljivic-Ivanovic M, Janković M, Dimović S, Zakić D, Antonijevic D. Cathode Ray Tube Waste Glass in Concrete Preparation - Increasing Sustainability. in Proceedings / 11th International Conference on Renewable Electrical Power Sources. 2023;:309-315.
https://hdl.handle.net/21.15107/rcub_grafar_3278 .

Jelić, Ivana, Savić, Aleksandar R., Miljojčić, Tatjana, Sljivic-Ivanovic, Marija, Janković, Marija, Dimović, Slavko, Zakić, Dimitrije, Antonijevic, Dragi, "Cathode Ray Tube Waste Glass in Concrete Preparation - Increasing Sustainability" in Proceedings / 11th International Conference on Renewable Electrical Power Sources (2023):309-315,
https://hdl.handle.net/21.15107/rcub_grafar_3278 .

TY  - CONF
AU  - Savić, Aleksandar
AU  - Broćeta, Gordana
AU  - Jelić, Ivana
AU  - Aškrabić, Marina
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2825
AB  - The testing of physical and mechanical properties has always been the starting point for production of adequate cement composites, such as concrete and mortar. The need to preserve the environment by recycling materials, among other means, has found its recognition in production of mortars and concretes made with recycled aggregate. The paper deals with the specific aspects regarding the use of aggregate based on the recycled rubber, recycled brick and recycled concrete in mortar and concrete mixtures, with respect to the advantages and disadvantages of these aggregates. Properties such as density and consistency of fresh mixtures, as well as hardened state density, and hardened state compressive, flexural and bond strength will be used to quantify and assess the effect of the recycled materials on cement properties, in order to provide their practical use. The testing was conducted on the composites with local materials and in local laboratory conditions. A special part relates to the use of these materials in Self-Compacting Concrete mixtures, where the extreme attention to the component testing, mix proportioning, and production technology has to be paid.
PB  - IRASA – International Research Academy of Science and Art  Belgrade
C3  - IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI IV 2022           Book of Proceedings
T1  - Green Concrete and Mortar Made with Recycled  Aggregate – a Step towards Sustainability in Civil Engineering
EP  - 81
SP  - 62
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2825
ER  - 

@conference{
author = "Savić, Aleksandar and Broćeta, Gordana and Jelić, Ivana and Aškrabić, Marina",
year = "2022",
abstract = "The testing of physical and mechanical properties has always been the starting point for production of adequate cement composites, such as concrete and mortar. The need to preserve the environment by recycling materials, among other means, has found its recognition in production of mortars and concretes made with recycled aggregate. The paper deals with the specific aspects regarding the use of aggregate based on the recycled rubber, recycled brick and recycled concrete in mortar and concrete mixtures, with respect to the advantages and disadvantages of these aggregates. Properties such as density and consistency of fresh mixtures, as well as hardened state density, and hardened state compressive, flexural and bond strength will be used to quantify and assess the effect of the recycled materials on cement properties, in order to provide their practical use. The testing was conducted on the composites with local materials and in local laboratory conditions. A special part relates to the use of these materials in Self-Compacting Concrete mixtures, where the extreme attention to the component testing, mix proportioning, and production technology has to be paid.",
publisher = "IRASA – International Research Academy of Science and Art  Belgrade",
journal = "IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI IV 2022           Book of Proceedings",
title = "Green Concrete and Mortar Made with Recycled  Aggregate – a Step towards Sustainability in Civil Engineering",
pages = "81-62",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2825"
}

Savić, A., Broćeta, G., Jelić, I.,& Aškrabić, M.. (2022). Green Concrete and Mortar Made with Recycled  Aggregate – a Step towards Sustainability in Civil Engineering. in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI IV 2022           Book of Proceedings
IRASA – International Research Academy of Science and Art  Belgrade., 62-81.
https://hdl.handle.net/21.15107/rcub_grafar_2825

Savić A, Broćeta G, Jelić I, Aškrabić M. Green Concrete and Mortar Made with Recycled  Aggregate – a Step towards Sustainability in Civil Engineering. in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI IV 2022           Book of Proceedings. 2022;:62-81.
https://hdl.handle.net/21.15107/rcub_grafar_2825 .

Savić, Aleksandar, Broćeta, Gordana, Jelić, Ivana, Aškrabić, Marina, "Green Concrete and Mortar Made with Recycled  Aggregate – a Step towards Sustainability in Civil Engineering" in IRASA International Scientific Conference SCIENCE, EDUCATION, TECHNOLOGY AND INNOVATION SETI IV 2022           Book of Proceedings (2022):62-81,
https://hdl.handle.net/21.15107/rcub_grafar_2825 .

TY  - CONF
AU  - Savić, Aleksandar R.
AU  - Jelić, Ivana
AU  - Sljivic-Ivanovic, Marija
AU  - Dimović, Slavko
AU  - Pudar, Nikola
AU  - Pfandler, Aleksandar
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2624
AB  - The paper presents experimental results of the tests conducted on Self-Compacting Concrete (SCC) with recycled coarse aggregate, and fly ash as filler component. A fine fraction of aggregate originated from a riverbed, while coarse aggregate was obtained either from a riverbed or by crushing laboratory concrete cubes as recycled concrete aggregate. The larger coarse aggregate grains than typical for SCC were used, to highlight the possibility of application in structure elements with sparse reinforcement bars. Four mixtures of concrete were made, in order to compressive strength as the dominant property of any concrete. All of the fresh concrete mixtures displayed proper behavior for this kind of concrete, whereas recycled concrete aggregate induced several challenges. Hardened concrete mixtures showed that beyond the use of natural coarse aggregate, there is the possibility to obtain proper mechanical behavior needed for structural concrete, with moderate amounts of cement. Such an approach paves a way for a cleaner and more sustainable civil engineering practice.
PB  - University of Belgrade ‐ Technical Faculty in Bor
C3  - 52nd International October  Conference on Mining and Metallurgy
T1  - Recycled Coarse Aggregate and Fly Ash Effect on Compressive Strength of Self-Compacting Concrete
EP  - 176
SP  - 173
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2624
ER  - 

@conference{
author = "Savić, Aleksandar R. and Jelić, Ivana and Sljivic-Ivanovic, Marija and Dimović, Slavko and Pudar, Nikola and Pfandler, Aleksandar",
year = "2021",
abstract = "The paper presents experimental results of the tests conducted on Self-Compacting Concrete (SCC) with recycled coarse aggregate, and fly ash as filler component. A fine fraction of aggregate originated from a riverbed, while coarse aggregate was obtained either from a riverbed or by crushing laboratory concrete cubes as recycled concrete aggregate. The larger coarse aggregate grains than typical for SCC were used, to highlight the possibility of application in structure elements with sparse reinforcement bars. Four mixtures of concrete were made, in order to compressive strength as the dominant property of any concrete. All of the fresh concrete mixtures displayed proper behavior for this kind of concrete, whereas recycled concrete aggregate induced several challenges. Hardened concrete mixtures showed that beyond the use of natural coarse aggregate, there is the possibility to obtain proper mechanical behavior needed for structural concrete, with moderate amounts of cement. Such an approach paves a way for a cleaner and more sustainable civil engineering practice.",
publisher = "University of Belgrade ‐ Technical Faculty in Bor",
journal = "52nd International October  Conference on Mining and Metallurgy",
title = "Recycled Coarse Aggregate and Fly Ash Effect on Compressive Strength of Self-Compacting Concrete",
pages = "176-173",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2624"
}

Savić, A. R., Jelić, I., Sljivic-Ivanovic, M., Dimović, S., Pudar, N.,& Pfandler, A.. (2021). Recycled Coarse Aggregate and Fly Ash Effect on Compressive Strength of Self-Compacting Concrete. in 52nd International October  Conference on Mining and Metallurgy
University of Belgrade ‐ Technical Faculty in Bor., 173-176.
https://hdl.handle.net/21.15107/rcub_grafar_2624

Savić AR, Jelić I, Sljivic-Ivanovic M, Dimović S, Pudar N, Pfandler A. Recycled Coarse Aggregate and Fly Ash Effect on Compressive Strength of Self-Compacting Concrete. in 52nd International October  Conference on Mining and Metallurgy. 2021;:173-176.
https://hdl.handle.net/21.15107/rcub_grafar_2624 .

Savić, Aleksandar R., Jelić, Ivana, Sljivic-Ivanovic, Marija, Dimović, Slavko, Pudar, Nikola, Pfandler, Aleksandar, "Recycled Coarse Aggregate and Fly Ash Effect on Compressive Strength of Self-Compacting Concrete" in 52nd International October  Conference on Mining and Metallurgy (2021):173-176,
https://hdl.handle.net/21.15107/rcub_grafar_2624 .

TY  - CONF
AU  - Jelić, Ivana
AU  - Savić, Aleksandar R.
AU  - Sljivic-Ivanovic, Marija
AU  - Dimović, Slavko
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2626
AB  - The use of recycled materials or waste increases sustainability in the construction sector. Likewise, the self-compacting concrete (SCC) has shown improvement in mechanical properties, when made with some waste pozzolanic materials. The differences in the compressive strength of the SCC concrete sample in the case of 5% by mass share of silica fume compared to samples with 7% were explored. The results shown that optimal replacement of Ordinary Portland Cement by silica fume is 5%, under applied experimental conditions.
PB  - University of Belgrade ‐ Technical Faculty in Bor
C3  - 52nd International October  Conference on Mining and Metallurgy
T1  - Influence of Silica Fume on SCC Concrete Properties
EP  - 128
SP  - 125
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2626
ER  - 

@conference{
author = "Jelić, Ivana and Savić, Aleksandar R. and Sljivic-Ivanovic, Marija and Dimović, Slavko",
year = "2021",
abstract = "The use of recycled materials or waste increases sustainability in the construction sector. Likewise, the self-compacting concrete (SCC) has shown improvement in mechanical properties, when made with some waste pozzolanic materials. The differences in the compressive strength of the SCC concrete sample in the case of 5% by mass share of silica fume compared to samples with 7% were explored. The results shown that optimal replacement of Ordinary Portland Cement by silica fume is 5%, under applied experimental conditions.",
publisher = "University of Belgrade ‐ Technical Faculty in Bor",
journal = "52nd International October  Conference on Mining and Metallurgy",
title = "Influence of Silica Fume on SCC Concrete Properties",
pages = "128-125",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2626"
}

Jelić, I., Savić, A. R., Sljivic-Ivanovic, M.,& Dimović, S.. (2021). Influence of Silica Fume on SCC Concrete Properties. in 52nd International October  Conference on Mining and Metallurgy
University of Belgrade ‐ Technical Faculty in Bor., 125-128.
https://hdl.handle.net/21.15107/rcub_grafar_2626

Jelić I, Savić AR, Sljivic-Ivanovic M, Dimović S. Influence of Silica Fume on SCC Concrete Properties. in 52nd International October  Conference on Mining and Metallurgy. 2021;:125-128.
https://hdl.handle.net/21.15107/rcub_grafar_2626 .

Jelić, Ivana, Savić, Aleksandar R., Sljivic-Ivanovic, Marija, Dimović, Slavko, "Influence of Silica Fume on SCC Concrete Properties" in 52nd International October  Conference on Mining and Metallurgy (2021):125-128,
https://hdl.handle.net/21.15107/rcub_grafar_2626 .