TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Terzić, Anja
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12140
AB  - During the implementation of construction barrier design procedures for protection against gamma and X
radiation, the inevitable question arises of choosing building materials with suitable mechanical and radiation
characteristics for protective barriers. Based on engineering practice, it is necessary to compare different
types of concrete used for the construction of buildings in which there are sources of gamma and X radiation,
as in cases where radiation sources appear in medical institutions with linear accelerators, cyclotron
installations for the acceleration of nuclear particles, in the environment of nuclear reactors, in radioactive
waste warehouses or in radiation sterilization units. In the analysis of costs and benefits, several criteria are
used to evaluate the characteristics of concrete, so that, in addition to the mechanical ones, the radiation
characteristics of the building material are also taken into account. One of the most important characteristics
of radiation shielding concrete is its overall mass attenuation coefficient. In this paper, the XCOM computer
code was used to calculate the total mass attenuation coefficients in the energy range from 0.01 MeV to 100
MeV for three types of concrete: ultrahight properties concrete (UHPC), concrete with barite and concrete
with magnetite and steel. Based on the comparison of the calculation results, it was concluded that concrete
with magnetite and steel has a greater protective power than the other two types of concrete for gamma and X
radiation energy lower than 30 keV. Another important conclusion is that concrete with barite has a higher
protective power than the other two types of concrete in the photon energy range from 30 keV to 300 keV,
and for photon energy greater than 6 MeV. A detailed analysis of the calculation results revealed that in the
energy range from 400 keV to 6 MeV the values for the total mass attenuation coefficients are approximately
the same for three different types of concrete.
PB  - Niš : RAD Centre
C3  - RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
T1  - Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel
SP  - 239
EP  - 239
DO  - 10.21175/rad.abstr.book.2023.36.19
ER  - 

@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Terzić, Anja and Bojović, Dragan and Stojanović, Marko",
year = "2023",
abstract = "During the implementation of construction barrier design procedures for protection against gamma and X
radiation, the inevitable question arises of choosing building materials with suitable mechanical and radiation
characteristics for protective barriers. Based on engineering practice, it is necessary to compare different
types of concrete used for the construction of buildings in which there are sources of gamma and X radiation,
as in cases where radiation sources appear in medical institutions with linear accelerators, cyclotron
installations for the acceleration of nuclear particles, in the environment of nuclear reactors, in radioactive
waste warehouses or in radiation sterilization units. In the analysis of costs and benefits, several criteria are
used to evaluate the characteristics of concrete, so that, in addition to the mechanical ones, the radiation
characteristics of the building material are also taken into account. One of the most important characteristics
of radiation shielding concrete is its overall mass attenuation coefficient. In this paper, the XCOM computer
code was used to calculate the total mass attenuation coefficients in the energy range from 0.01 MeV to 100
MeV for three types of concrete: ultrahight properties concrete (UHPC), concrete with barite and concrete
with magnetite and steel. Based on the comparison of the calculation results, it was concluded that concrete
with magnetite and steel has a greater protective power than the other two types of concrete for gamma and X
radiation energy lower than 30 keV. Another important conclusion is that concrete with barite has a higher
protective power than the other two types of concrete in the photon energy range from 30 keV to 300 keV,
and for photon energy greater than 6 MeV. A detailed analysis of the calculation results revealed that in the
energy range from 400 keV to 6 MeV the values for the total mass attenuation coefficients are approximately
the same for three different types of concrete.",
publisher = "Niš : RAD Centre",
journal = "RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts",
title = "Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel",
pages = "239-239",
doi = "10.21175/rad.abstr.book.2023.36.19"
}

Janković, K., Stanković, S., Terzić, A., Bojović, D.,& Stojanović, M.. (2023). Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts
Niš : RAD Centre., 239-239.
https://doi.org/10.21175/rad.abstr.book.2023.36.19

Janković K, Stanković S, Terzić A, Bojović D, Stojanović M. Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel. in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts. 2023;:239-239.
doi:10.21175/rad.abstr.book.2023.36.19 .

Janković, Ksenija, Stanković, Srboljub, Terzić, Anja, Bojović, Dragan, Stojanović, Marko, "Gamma and X radiation attenuation characteristics for ultrahigh properties of concrete, concrete with barite and concrete with magnetite and steel" in RAD 2023 : 11th International Conference on Radiation Natural Sciences, Medicine, Engineering, Technology and Ecology : Book of Abstracts (2023):239-239,
https://doi.org/10.21175/rad.abstr.book.2023.36.19 . .

TY  - CONF
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12161
C3  - 20th International symposium (MASE) Macedonian association of structural engineers "Resilent structures" : Proceedings book
T1  - The properties of heavyweight self-compacting concrete on water penetration under pressure
SP  - 1014
EP  - 1020
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12161
ER  - 

@conference{
author = "Janković, Ksenija and Bojović, Dragan and Stojanović, Marko and Terzić, Anja and Stanković, Srboljub",
year = "2023",
journal = "20th International symposium (MASE) Macedonian association of structural engineers "Resilent structures" : Proceedings book",
title = "The properties of heavyweight self-compacting concrete on water penetration under pressure",
pages = "1014-1020",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12161"
}

Janković, K., Bojović, D., Stojanović, M., Terzić, A.,& Stanković, S.. (2023). The properties of heavyweight self-compacting concrete on water penetration under pressure. in 20th International symposium (MASE) Macedonian association of structural engineers "Resilent structures" : Proceedings book, 1014-1020.
https://hdl.handle.net/21.15107/rcub_vinar_12161

Janković K, Bojović D, Stojanović M, Terzić A, Stanković S. The properties of heavyweight self-compacting concrete on water penetration under pressure. in 20th International symposium (MASE) Macedonian association of structural engineers "Resilent structures" : Proceedings book. 2023;:1014-1020.
https://hdl.handle.net/21.15107/rcub_vinar_12161 .

Janković, Ksenija, Bojović, Dragan, Stojanović, Marko, Terzić, Anja, Stanković, Srboljub, "The properties of heavyweight self-compacting concrete on water penetration under pressure" in 20th International symposium (MASE) Macedonian association of structural engineers "Resilent structures" : Proceedings book (2023):1014-1020,
https://hdl.handle.net/21.15107/rcub_vinar_12161 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Terzić, Anja
PY  - 2023
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/11650
AB  - The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nanosilica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.
PB  - Belgrade : Serbian Ceramic Society
C3  - Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
T1  - Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_vinar_11650
ER  - 

@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Bojović, Dragan and Stojanović, Marko and Antić Aranđelović, Lana and Terzić, Anja",
year = "2023",
abstract = "The impacts of nano-silica addition, steel micro-reinforcement, and aggregate type on the mechanical properties and durability of ultra-high-performance concrete (UHPC) were studied. As aggregates, quartz and barite were used. The amounts of steel fibers and nanosilica were alternated. Six concrete mixes were produced with quartz sand, and the remaining six concrete mixes were designed with barite sand. Fibers made about 3-5% of the concrete composition’s mass. In a 2-5% concentration, nano-silica was used as a cement replacement. The inclusion of nano-silica significantly boosted the compressive strength of UHPC. The compressive and flexural strengths were also positively impacted by fiber supplementation ranging from 3% to 5%. The amount of fiber utilized proved to be more influential than the aggregate used. The UHPC concrete's durability was increased as all samples were highly resistant to freezing and thawing cycles. UHPC designed with barite aggregate demonstrated good X and gamma ray absorption at energies below 300 keV.",
publisher = "Belgrade : Serbian Ceramic Society",
journal = "Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade",
title = "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_vinar_11650"
}

Janković, K., Stanković, S., Bojović, D., Stojanović, M., Antić Aranđelović, L.,& Terzić, A.. (2023). Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade
Belgrade : Serbian Ceramic Society., 83.
https://hdl.handle.net/21.15107/rcub_vinar_11650

Janković K, Stanković S, Bojović D, Stojanović M, Antić Aranđelović L, Terzić A. Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade. 2023;:83.
https://hdl.handle.net/21.15107/rcub_vinar_11650 .

Janković, Ksenija, Stanković, Srboljub, Bojović, Dragan, Stojanović, Marko, Antić Aranđelović, Lana, Terzić, Anja, "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement" in Advanced Ceramics and Application :11th Serbian Ceramic Society Conference : program and the book of abstracts; September 18-20, 2023; Belgrade (2023):83,
https://hdl.handle.net/21.15107/rcub_vinar_11650 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Terzić, Anja
AU  - Bojović, Dragan
AU  - Stanković, Srboljub
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12134
AB  - A comparative study of performances of self compacting concrete (SCC) with fly ash and limestone filler was conducted. The experimental program included the production of reference SCC designed with Portland cement, river sand and limestone filler and four experimental self compacting concretes with different types of fine aggregates, fillers and special additive to increase freeze-thaw resistance. The effects that different sand and additions have on the properties of fresh SCC (slump-flow test, V-funnel test, and L-box test) and compressive strengths in early ages (3 and 7 days) were investigated and discussed.
C3  - 16th International Congress of Association of Structural Engineers of Serbia : Proceedings
T1  - Impact of fine aggregate particle size and morphology on the early strengths of SCC
SP  - 422
EP  - 429
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12134
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Terzić, Anja and Bojović, Dragan and Stanković, Srboljub",
year = "2022",
abstract = "A comparative study of performances of self compacting concrete (SCC) with fly ash and limestone filler was conducted. The experimental program included the production of reference SCC designed with Portland cement, river sand and limestone filler and four experimental self compacting concretes with different types of fine aggregates, fillers and special additive to increase freeze-thaw resistance. The effects that different sand and additions have on the properties of fresh SCC (slump-flow test, V-funnel test, and L-box test) and compressive strengths in early ages (3 and 7 days) were investigated and discussed.",
journal = "16th International Congress of Association of Structural Engineers of Serbia : Proceedings",
title = "Impact of fine aggregate particle size and morphology on the early strengths of SCC",
pages = "422-429",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12134"
}

Janković, K., Stojanović, M., Terzić, A., Bojović, D.,& Stanković, S.. (2022). Impact of fine aggregate particle size and morphology on the early strengths of SCC. in 16th International Congress of Association of Structural Engineers of Serbia : Proceedings, 422-429.
https://hdl.handle.net/21.15107/rcub_vinar_12134

Janković K, Stojanović M, Terzić A, Bojović D, Stanković S. Impact of fine aggregate particle size and morphology on the early strengths of SCC. in 16th International Congress of Association of Structural Engineers of Serbia : Proceedings. 2022;:422-429.
https://hdl.handle.net/21.15107/rcub_vinar_12134 .

Janković, Ksenija, Stojanović, Marko, Terzić, Anja, Bojović, Dragan, Stanković, Srboljub, "Impact of fine aggregate particle size and morphology on the early strengths of SCC" in 16th International Congress of Association of Structural Engineers of Serbia : Proceedings (2022):422-429,
https://hdl.handle.net/21.15107/rcub_vinar_12134 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2022
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12135
C3  - XXVIII Congress DIMK and IX Congress SIGP with International Symposium on Researching and Application of Contemporary Achievements in Civil Engineering in the Field of Materials and Structures : Proceedings
T1  - Properties of heavyweight SCC with fly ash
T1  - Svojstva teškog SCC sa letećim pepelom
SP  - 389
EP  - 396
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12135
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2022",
journal = "XXVIII Congress DIMK and IX Congress SIGP with International Symposium on Researching and Application of Contemporary Achievements in Civil Engineering in the Field of Materials and Structures : Proceedings",
title = "Properties of heavyweight SCC with fly ash, Svojstva teškog SCC sa letećim pepelom",
pages = "389-396",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12135"
}

Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2022). Properties of heavyweight SCC with fly ash. in XXVIII Congress DIMK and IX Congress SIGP with International Symposium on Researching and Application of Contemporary Achievements in Civil Engineering in the Field of Materials and Structures : Proceedings, 389-396.
https://hdl.handle.net/21.15107/rcub_vinar_12135

Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Properties of heavyweight SCC with fly ash. in XXVIII Congress DIMK and IX Congress SIGP with International Symposium on Researching and Application of Contemporary Achievements in Civil Engineering in the Field of Materials and Structures : Proceedings. 2022;:389-396.
https://hdl.handle.net/21.15107/rcub_vinar_12135 .

Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Properties of heavyweight SCC with fly ash" in XXVIII Congress DIMK and IX Congress SIGP with International Symposium on Researching and Application of Contemporary Achievements in Civil Engineering in the Field of Materials and Structures : Proceedings (2022):389-396,
https://hdl.handle.net/21.15107/rcub_vinar_12135 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Antić, Lana
PY  - 2016
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/12148
AB  - The aim of this investigation is to develop ultra high performance concrete (UHPC) for multipurpose - higher mechanical and ionizing radiation protection. The effect of nano-silica replacement (2 or 5%) on the properties of UHPC was compared with the referent concrete by testing compressive and flexural strength. As nano-silica influences cement hydration and modifies the pore structure, qualitative and quantitative analysis of pores was done using a device RapidAir 457. The second objective of this paper is to evaluate the influence of different aggregates on concrete properties. Two types of aggregate were used: quartz and barite. One of the most important characteristics of the concrete for protection against gamma and X radiation is its Total Attenuation Coefficient (µ/ρ)tot.
PB  - United Kingdom : University of Dundee
C3  - 9th International Concrete Conference 2016 "Environment, Efficiency and Economic Challenges for Concrete" : Proceedings
T1  - Effect of nano-silica and aggregate type on properties of ultra high performance concrete
SP  - 839
EP  - 846
UR  - https://hdl.handle.net/21.15107/rcub_vinar_12148
ER  - 

@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Stojanović, Marko and Bojović, Dragan and Antić, Lana",
year = "2016",
abstract = "The aim of this investigation is to develop ultra high performance concrete (UHPC) for multipurpose - higher mechanical and ionizing radiation protection. The effect of nano-silica replacement (2 or 5%) on the properties of UHPC was compared with the referent concrete by testing compressive and flexural strength. As nano-silica influences cement hydration and modifies the pore structure, qualitative and quantitative analysis of pores was done using a device RapidAir 457. The second objective of this paper is to evaluate the influence of different aggregates on concrete properties. Two types of aggregate were used: quartz and barite. One of the most important characteristics of the concrete for protection against gamma and X radiation is its Total Attenuation Coefficient (µ/ρ)tot.",
publisher = "United Kingdom : University of Dundee",
journal = "9th International Concrete Conference 2016 "Environment, Efficiency and Economic Challenges for Concrete" : Proceedings",
title = "Effect of nano-silica and aggregate type on properties of ultra high performance concrete",
pages = "839-846",
url = "https://hdl.handle.net/21.15107/rcub_vinar_12148"
}

Janković, K., Stanković, S., Stojanović, M., Bojović, D.,& Antić, L.. (2016). Effect of nano-silica and aggregate type on properties of ultra high performance concrete. in 9th International Concrete Conference 2016 "Environment, Efficiency and Economic Challenges for Concrete" : Proceedings
United Kingdom : University of Dundee., 839-846.
https://hdl.handle.net/21.15107/rcub_vinar_12148

Janković K, Stanković S, Stojanović M, Bojović D, Antić L. Effect of nano-silica and aggregate type on properties of ultra high performance concrete. in 9th International Concrete Conference 2016 "Environment, Efficiency and Economic Challenges for Concrete" : Proceedings. 2016;:839-846.
https://hdl.handle.net/21.15107/rcub_vinar_12148 .

Janković, Ksenija, Stanković, Srboljub, Stojanović, Marko, Bojović, Dragan, Antić, Lana, "Effect of nano-silica and aggregate type on properties of ultra high performance concrete" in 9th International Concrete Conference 2016 "Environment, Efficiency and Economic Challenges for Concrete" : Proceedings (2016):839-846,
https://hdl.handle.net/21.15107/rcub_vinar_12148 .