TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/651
AB  - This study compared the performance of self-compacting concrete (SCC) based on fly ash addition and limestone filler. A SCC prepared with Portland cement, river sand, and limestone filler was used as a reference sample. Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between mix design, i.e., percentage of barite sand and additives, and properties of fresh SCC (slump-flow test, V-funnel test, and L-box test), as well as properties of hardened SCC (compressive strengths), were investigated and discussed.
C3  - International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures
T1  - Influence of Aggregate Type on the Properties on SCC with Fly Ash
DO  - 10.1007/978-3-031-33187-9_5
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja",
year = "2023",
abstract = "This study compared the performance of self-compacting concrete (SCC) based on fly ash addition and limestone filler. A SCC prepared with Portland cement, river sand, and limestone filler was used as a reference sample. Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between mix design, i.e., percentage of barite sand and additives, and properties of fresh SCC (slump-flow test, V-funnel test, and L-box test), as well as properties of hardened SCC (compressive strengths), were investigated and discussed.",
journal = "International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures",
title = "Influence of Aggregate Type on the Properties on SCC with Fly Ash",
doi = "10.1007/978-3-031-33187-9_5"
}

Janković, K., Stojanović, M., Bojović, D.,& Terzić, A.. (2023). Influence of Aggregate Type on the Properties on SCC with Fly Ash. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures.
https://doi.org/10.1007/978-3-031-33187-9_5

Janković K, Stojanović M, Bojović D, Terzić A. Influence of Aggregate Type on the Properties on SCC with Fly Ash. in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures. 2023;.
doi:10.1007/978-3-031-33187-9_5 .

Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, "Influence of Aggregate Type on the Properties on SCC with Fly Ash" in International RILEM Conference on Synergising Expertise towards Sustainability and Robustness of Cement-based Materials and Concrete Structures (2023),
https://doi.org/10.1007/978-3-031-33187-9_5 . .

TY  - CONF
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Bojović, Dragan
AU  - Janković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/587
AB  - The paper shows the influence of steel fibers obtained from steel wire separated in the recycling process of waste car tires on the properties of concrete. The reference concrete was prepared, as well as concretes with the addition of steel fibers, which were varied in contents at 20 kg/m3 and 40 kg/m3. The slump test of fresh concrete was performed using the Webe method, where it was established that with an increase in the amount of fibers, concretes with a stiffer consistency are obtained. Concrete beams were tested for strength during flexure tension (limit of proportionality (LOP) and residual flexural strength).
Can be concluded that the residual flexure strength greater than 1.5 MPa at a CMOD of 0.5 mm is already achieved with the addition of 20 kg of fibers per m3 of concrete, while both conditions for the residual bending strengths are satisfied with the addition of 40 kg of fibers per m3 of concrete and that they amount to 2.4 MPa at a CMOD of 0.5 mm and 1.4 MPa at a CMOD of 3.5 mm.
C3  - Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia
T1  - The influence of steel fibers obtained by recycling waste tires on the properties of concrete
EP  - 1150
SP  - 1145
UR  - https://hdl.handle.net/21.15107/rcub_rims_587
ER  - 

@conference{
author = "Stojanović, Marko and Antić Aranđelović, Lana and Bojović, Dragan and Janković, Ksenija",
year = "2023",
abstract = "The paper shows the influence of steel fibers obtained from steel wire separated in the recycling process of waste car tires on the properties of concrete. The reference concrete was prepared, as well as concretes with the addition of steel fibers, which were varied in contents at 20 kg/m3 and 40 kg/m3. The slump test of fresh concrete was performed using the Webe method, where it was established that with an increase in the amount of fibers, concretes with a stiffer consistency are obtained. Concrete beams were tested for strength during flexure tension (limit of proportionality (LOP) and residual flexural strength).
Can be concluded that the residual flexure strength greater than 1.5 MPa at a CMOD of 0.5 mm is already achieved with the addition of 20 kg of fibers per m3 of concrete, while both conditions for the residual bending strengths are satisfied with the addition of 40 kg of fibers per m3 of concrete and that they amount to 2.4 MPa at a CMOD of 0.5 mm and 1.4 MPa at a CMOD of 3.5 mm.",
journal = "Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia",
title = "The influence of steel fibers obtained by recycling waste tires on the properties of concrete",
pages = "1150-1145",
url = "https://hdl.handle.net/21.15107/rcub_rims_587"
}

Stojanović, M., Antić Aranđelović, L., Bojović, D.,& Janković, K.. (2023). The influence of steel fibers obtained by recycling waste tires on the properties of concrete. in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia, 1145-1150.
https://hdl.handle.net/21.15107/rcub_rims_587

Stojanović M, Antić Aranđelović L, Bojović D, Janković K. The influence of steel fibers obtained by recycling waste tires on the properties of concrete. in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia. 2023;:1145-1150.
https://hdl.handle.net/21.15107/rcub_rims_587 .

Stojanović, Marko, Antić Aranđelović, Lana, Bojović, Dragan, Janković, Ksenija, "The influence of steel fibers obtained by recycling waste tires on the properties of concrete" in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia (2023):1145-1150,
https://hdl.handle.net/21.15107/rcub_rims_587 .

TY  - CONF
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Flajs, Željko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/578
AB  - The paper presents the influence of the use of different types of fibers on the properties of concrete. All concrete samples were made  with  same component materials and compositions, except for the amount of fibers, which was varied. After hardening, the concrete samples were tested for compressive strength, tensile splitting strength and water penetration depth under pressure. Based on the test results, depending on the type, shape, amount and arrangement of fibers, the tensile and compressive strength values as well as the depth of water penetration under pressure were analyzed. Based on the tests performed, the best mechanical properties were achieved with the use of "Dramix 3D" steel fibers.
C3  - International Scientific Conference SINARG 2023, organized by the Faculty of Civil Engineering and Architecture, University of Niš, and Serbian Academy of Sciences and Arts, Local Branch in Niš, Proceedings
T1  - Influence of different types of fibers on properties of concrete
EP  - 1072
SP  - 1066
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_rims_578
ER  - 

@conference{
author = "Stojanović, Marko and Antić Aranđelović, Lana and Janković, Ksenija and Bojović, Dragan and Flajs, Željko",
year = "2023",
abstract = "The paper presents the influence of the use of different types of fibers on the properties of concrete. All concrete samples were made  with  same component materials and compositions, except for the amount of fibers, which was varied. After hardening, the concrete samples were tested for compressive strength, tensile splitting strength and water penetration depth under pressure. Based on the test results, depending on the type, shape, amount and arrangement of fibers, the tensile and compressive strength values as well as the depth of water penetration under pressure were analyzed. Based on the tests performed, the best mechanical properties were achieved with the use of "Dramix 3D" steel fibers.",
journal = "International Scientific Conference SINARG 2023, organized by the Faculty of Civil Engineering and Architecture, University of Niš, and Serbian Academy of Sciences and Arts, Local Branch in Niš, Proceedings",
title = "Influence of different types of fibers on properties of concrete",
pages = "1072-1066",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_rims_578"
}

Stojanović, M., Antić Aranđelović, L., Janković, K., Bojović, D.,& Flajs, Ž.. (2023). Influence of different types of fibers on properties of concrete. in International Scientific Conference SINARG 2023, organized by the Faculty of Civil Engineering and Architecture, University of Niš, and Serbian Academy of Sciences and Arts, Local Branch in Niš, Proceedings, 2, 1066-1072.
https://hdl.handle.net/21.15107/rcub_rims_578

Stojanović M, Antić Aranđelović L, Janković K, Bojović D, Flajs Ž. Influence of different types of fibers on properties of concrete. in International Scientific Conference SINARG 2023, organized by the Faculty of Civil Engineering and Architecture, University of Niš, and Serbian Academy of Sciences and Arts, Local Branch in Niš, Proceedings. 2023;2:1066-1072.
https://hdl.handle.net/21.15107/rcub_rims_578 .

Stojanović, Marko, Antić Aranđelović, Lana, Janković, Ksenija, Bojović, Dragan, Flajs, Željko, "Influence of different types of fibers on properties of concrete" in International Scientific Conference SINARG 2023, organized by the Faculty of Civil Engineering and Architecture, University of Niš, and Serbian Academy of Sciences and Arts, Local Branch in Niš, Proceedings, 2 (2023):1066-1072,
https://hdl.handle.net/21.15107/rcub_rims_578 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Terzić, Anja
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/575
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 nano-silica 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.
C3  - Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia
T1  - Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement
SP  - 83
UR  - https://hdl.handle.net/21.15107/rcub_rims_575
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 nano-silica 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.",
journal = "Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia",
title = "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement",
pages = "83",
url = "https://hdl.handle.net/21.15107/rcub_rims_575"
}

Janković, K., Stanković, S., Bojović, D., Stojanović, M., Antić Aranđelović, L.,& Terzić, A.. (2023). Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia, 83.
https://hdl.handle.net/21.15107/rcub_rims_575

Janković K, Stanković S, Bojović D, Stojanović M, Antić Aranđelović L, Terzić A. Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement. in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia. 2023;:83.
https://hdl.handle.net/21.15107/rcub_rims_575 .

Janković, Ksenija, Stanković, Srboljub, Bojović, Dragan, Stojanović, Marko, Antić Aranđelović, Lana, Terzić, Anja, "Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement" in Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia (2023):83,
https://hdl.handle.net/21.15107/rcub_rims_575 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Stojanović, Marko
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/586
AB  - Fly ash is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as self-compacting concrete (SCC). A comparative study of performances of SCC with fly ash and standard SCC with limestone filler was conducted.Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between percentage of barite sand and additives, and properties of SCC, were
investigated and discussed. Main topic of these article is testing the resistance of concrete to penetration of water under pressure.
C3  - Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia
T1  - The properties of heavyweight self-compacting concrete on water penetration under pressure
EP  - 1020
SP  - 1014
UR  - https://hdl.handle.net/21.15107/rcub_rims_586
ER  - 

@conference{
author = "Janković, Ksenija and Bojović, Dragan and Stojanović, Marko and Terzić, Anja and Stanković, Srboljub",
year = "2023",
abstract = "Fly ash is a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as self-compacting concrete (SCC). A comparative study of performances of SCC with fly ash and standard SCC with limestone filler was conducted.Additional experimental self-compacting concretes with different types of fine aggregates, fillers, and special additives for increasing freeze-thaw resistance were prepared and optimized. The correlation between percentage of barite sand and additives, and properties of SCC, were
investigated and discussed. Main topic of these article is testing the resistance of concrete to penetration of water under pressure.",
journal = "Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia",
title = "The properties of heavyweight self-compacting concrete on water penetration under pressure",
pages = "1020-1014",
url = "https://hdl.handle.net/21.15107/rcub_rims_586"
}

Janković, K., Bojović, D., Stojanović, M., Terzić, A.,& Stanković, S.. (2023). The properties of heavyweight self-compacting concrete on water penetration under pressure. in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia, 1014-1020.
https://hdl.handle.net/21.15107/rcub_rims_586

Janković K, Bojović D, Stojanović M, Terzić A, Stanković S. The properties of heavyweight self-compacting concrete on water penetration under pressure. in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia. 2023;:1014-1020.
https://hdl.handle.net/21.15107/rcub_rims_586 .

Janković, Ksenija, Bojović, Dragan, Stojanović, Marko, Terzić, Anja, Stanković, Srboljub, "The properties of heavyweight self-compacting concrete on water penetration under pressure" in Proceedings of the 20th International symposium of MASE, Skopje, Republic of North Macedonia (2023):1014-1020,
https://hdl.handle.net/21.15107/rcub_rims_586 .

TY  - CONF
AU  - Ilić, Biljana
AU  - Bojović, Dragan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/565
C3  - NOVI PRISTUP OCENJIVANJU I VERIFIKACIJI STALNOSTI PERFORMANSI BETONA, Beograd-Zbornik radova
T1  - Ocenjivanje i verfikacija stalnosti performansi betona u skladu sa zahtevima Pravilnika za beton
EP  - 54
SP  - 49
UR  - https://hdl.handle.net/21.15107/rcub_rims_565
ER  - 

@conference{
author = "Ilić, Biljana and Bojović, Dragan",
year = "2023",
journal = "NOVI PRISTUP OCENJIVANJU I VERIFIKACIJI STALNOSTI PERFORMANSI BETONA, Beograd-Zbornik radova",
title = "Ocenjivanje i verfikacija stalnosti performansi betona u skladu sa zahtevima Pravilnika za beton",
pages = "54-49",
url = "https://hdl.handle.net/21.15107/rcub_rims_565"
}

Ilić, B.,& Bojović, D.. (2023). Ocenjivanje i verfikacija stalnosti performansi betona u skladu sa zahtevima Pravilnika za beton. in NOVI PRISTUP OCENJIVANJU I VERIFIKACIJI STALNOSTI PERFORMANSI BETONA, Beograd-Zbornik radova, 49-54.
https://hdl.handle.net/21.15107/rcub_rims_565

Ilić B, Bojović D. Ocenjivanje i verfikacija stalnosti performansi betona u skladu sa zahtevima Pravilnika za beton. in NOVI PRISTUP OCENJIVANJU I VERIFIKACIJI STALNOSTI PERFORMANSI BETONA, Beograd-Zbornik radova. 2023;:49-54.
https://hdl.handle.net/21.15107/rcub_rims_565 .

Ilić, Biljana, Bojović, Dragan, "Ocenjivanje i verfikacija stalnosti performansi betona u skladu sa zahtevima Pravilnika za beton" in NOVI PRISTUP OCENJIVANJU I VERIFIKACIJI STALNOSTI PERFORMANSI BETONA, Beograd-Zbornik radova (2023):49-54,
https://hdl.handle.net/21.15107/rcub_rims_565 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Terzić, Anja
AU  - Stojanović, Marko
AU  - Bojović, Dragan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/559
AB  - During the implementation of procedures for designing building barriers for protection against gamma and X radiation, the unavoidable question of choosing construction materials with appropriate mechanical and radiation characteristics for protective barriers arises. Based on engineering practice, it is necessary to compare different types of concrete used for the construction of facilities where there are sources of gamma and X radiation, such as in cases where radiation sources appear in medical facilities with linear accelerators, cyclotron installations for accelerating nuclear particles, in the environment of nuclear reactors, in radioactive waste storages, or in radiation sterilization unit s. In the cost-benefit analysis, several criteria are used to evaluate the characteristics of the concrete, so that in addition to the mechanical characteristics, the radiation characteristics of the construction material are also considered. One of the most important characteristics of concrete for radiation protection is its total mass attenuation coefficient. In this paper, computer code XCOM was used for the calculation of the total mass attenuation coefficients in energy range from 0.01MeV to 100 MeV for three types of concrete: ordinary concrete, concrete with barite and concrete with limonite and steel. Based on the comparison of calculation results, it was concluded that concrete with limonite and steel has greater protective power than other two concrete types for the gamma and X radiation energy less than 30 keV. The second important conclusion is that the concrete with barite has greater protective power than other two concrete types in the range of photon energy from 30 keV to 300 keV, and for photon energy greater than 6 MeV. A detailed analysis of the calculation results found that in the energy range of 400 keV to 6 MeV values for the total mass attenuation coefficients are approximately the same for three different types of concrete.
C3  - RAP 2023 International Conference on Radiation Applications, Book of Abstracts
T1  - Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel
SP  - 64
UR  - https://hdl.handle.net/21.15107/rcub_rims_559
ER  - 

@conference{
author = "Janković, Ksenija and Stanković, Srboljub and Terzić, Anja and Stojanović, Marko and Bojović, Dragan",
year = "2023",
abstract = "During the implementation of procedures for designing building barriers for protection against gamma and X radiation, the unavoidable question of choosing construction materials with appropriate mechanical and radiation characteristics for protective barriers arises. Based on engineering practice, it is necessary to compare different types of concrete used for the construction of facilities where there are sources of gamma and X radiation, such as in cases where radiation sources appear in medical facilities with linear accelerators, cyclotron installations for accelerating nuclear particles, in the environment of nuclear reactors, in radioactive waste storages, or in radiation sterilization unit s. In the cost-benefit analysis, several criteria are used to evaluate the characteristics of the concrete, so that in addition to the mechanical characteristics, the radiation characteristics of the construction material are also considered. One of the most important characteristics of concrete for radiation protection is its total mass attenuation coefficient. In this paper, computer code XCOM was used for the calculation of the total mass attenuation coefficients in energy range from 0.01MeV to 100 MeV for three types of concrete: ordinary concrete, concrete with barite and concrete with limonite and steel. Based on the comparison of calculation results, it was concluded that concrete with limonite and steel has greater protective power than other two concrete types for the gamma and X radiation energy less than 30 keV. The second important conclusion is that the concrete with barite has greater protective power than other two concrete types in the range of photon energy from 30 keV to 300 keV, and for photon energy greater than 6 MeV. A detailed analysis of the calculation results found that in the energy range of 400 keV to 6 MeV values for the total mass attenuation coefficients are approximately the same for three different types of concrete.",
journal = "RAP 2023 International Conference on Radiation Applications, Book of Abstracts",
title = "Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel",
pages = "64",
url = "https://hdl.handle.net/21.15107/rcub_rims_559"
}

Janković, K., Stanković, S., Terzić, A., Stojanović, M.,& Bojović, D.. (2023). Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel. in RAP 2023 International Conference on Radiation Applications, Book of Abstracts, 64.
https://hdl.handle.net/21.15107/rcub_rims_559

Janković K, Stanković S, Terzić A, Stojanović M, Bojović D. Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel. in RAP 2023 International Conference on Radiation Applications, Book of Abstracts. 2023;:64.
https://hdl.handle.net/21.15107/rcub_rims_559 .

Janković, Ksenija, Stanković, Srboljub, Terzić, Anja, Stojanović, Marko, Bojović, Dragan, "Comparison of gamma and X radiation attentuation characteristics for ordinary concrete with barite and concrete with limonite and steel" in RAP 2023 International Conference on Radiation Applications, Book of Abstracts (2023):64,
https://hdl.handle.net/21.15107/rcub_rims_559 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stanković, Srboljub
AU  - Terzić, Anja
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/558
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.
C3  - Eleventh 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
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.",
journal = "Eleventh 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",
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 Eleventh International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology, Book of Abstracts, 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 Eleventh International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology, Book of Abstracts. 2023;: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 Eleventh International Conference on Radiation, Natural Sciences, Medicine, Engineering, Technology and Ecology, Book of Abstracts (2023):239,
https://doi.org/10.21175/rad.abstr.book.2023.36.19 . .

TY  - JOUR
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Nikolić, Dragan
AU  - Janković, Ksenija
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/503
AB  - The experimental study included the design and production of ultra-high-performance steel fiber-reinforced concrete (UHPFRC). The physical and mechanical properties of UHPFRC were investigated in a laboratory setting. To investigate the properties of UHPFR concrete, three types of concrete and over 70 samples were used. Following that, samples were created to test the anchors' load-bearing performance. Six concrete slabs with a total of 108 pre-installed anchor samples and six concrete slabs with 108 post-installed chemical anchor samples were created. The analysis of the test findings comprised all individual results as well as the definition of the relationship between the anchor's tensile load capacity and other parameters. To accurately determine the individual influence of the investigated factors as well as their combined impact, a factorial experiment, and artificial neural networks were used in addition to normal statistical numerical studies. It was determined that both approaches offer advantages. The results obtained show matches in certain parts. Due to the way data is processed in different ways, there are also significant differences between them.
T2  - Science of Sintering 2023 OnLine-First Issue 00
T1  - Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN
DO  - 10.2298/SOS230420029B
ER  - 

@article{
author = "Bojović, Dragan and Terzić, Anja and Nikolić, Dragan and Janković, Ksenija",
year = "2023",
abstract = "The experimental study included the design and production of ultra-high-performance steel fiber-reinforced concrete (UHPFRC). The physical and mechanical properties of UHPFRC were investigated in a laboratory setting. To investigate the properties of UHPFR concrete, three types of concrete and over 70 samples were used. Following that, samples were created to test the anchors' load-bearing performance. Six concrete slabs with a total of 108 pre-installed anchor samples and six concrete slabs with 108 post-installed chemical anchor samples were created. The analysis of the test findings comprised all individual results as well as the definition of the relationship between the anchor's tensile load capacity and other parameters. To accurately determine the individual influence of the investigated factors as well as their combined impact, a factorial experiment, and artificial neural networks were used in addition to normal statistical numerical studies. It was determined that both approaches offer advantages. The results obtained show matches in certain parts. Due to the way data is processed in different ways, there are also significant differences between them.",
journal = "Science of Sintering 2023 OnLine-First Issue 00",
title = "Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN",
doi = "10.2298/SOS230420029B"
}

Bojović, D., Terzić, A., Nikolić, D.,& Janković, K.. (2023). Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN. in Science of Sintering 2023 OnLine-First Issue 00.
https://doi.org/10.2298/SOS230420029B

Bojović D, Terzić A, Nikolić D, Janković K. Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN. in Science of Sintering 2023 OnLine-First Issue 00. 2023;.
doi:10.2298/SOS230420029B .

Bojović, Dragan, Terzić, Anja, Nikolić, Dragan, Janković, Ksenija, "Determination of the effects of the rebar-cement bond parameters variation in UHPFRC using FA and ANN" in Science of Sintering 2023 OnLine-First Issue 00 (2023),
https://doi.org/10.2298/SOS230420029B . .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/502
AB  - Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored.
PB  - University of Belgrade, Technical Faculty in Bor
C3  - XI International Mineral Processing & Recycling Conference – IMPRC Proceedings
T1  - Application of coal combustion byproducts in self-compacting concrete: influence on flowability
EP  - 584
SP  - 579
UR  - https://hdl.handle.net/21.15107/rcub_rims_502
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2023",
abstract = "Compared to traditional concrete, self-compacting concrete (SCC) demonstrates greater flowability, which is achieved by including an extra high percentage of ultra-fine particles. As a result, the required high paste content is obtained while the cement content is strictly limited. The coal combustion byproduct (fly ash) is one of the most efficient SCC fillers because it extends the lifecycle of SCC by improving its microstructural properties, strength, and durability. In this study, the amounts of fly ash in SCC compositions varied. The changes in physical and mechanical characteristics of fresh SCC samples related to variations in the water/binder ratio were monitored.",
publisher = "University of Belgrade, Technical Faculty in Bor",
journal = "XI International Mineral Processing & Recycling Conference – IMPRC Proceedings",
title = "Application of coal combustion byproducts in self-compacting concrete: influence on flowability",
pages = "584-579",
url = "https://hdl.handle.net/21.15107/rcub_rims_502"
}

Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2023). Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings
University of Belgrade, Technical Faculty in Bor., 579-584.
https://hdl.handle.net/21.15107/rcub_rims_502

Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Application of coal combustion byproducts in self-compacting concrete: influence on flowability. in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings. 2023;:579-584.
https://hdl.handle.net/21.15107/rcub_rims_502 .

Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Application of coal combustion byproducts in self-compacting concrete: influence on flowability" in XI International Mineral Processing & Recycling Conference – IMPRC Proceedings (2023):579-584,
https://hdl.handle.net/21.15107/rcub_rims_502 .

TY  - JOUR
AU  - Flajs, Željko
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/495
AB  - Ponašanje struktura pod delovanjem različitih vrsta opterećenja
određene su njenim deformacionim karakteristikama,
globalnim deformacionim karakteristikama – pomeranjima
i rotacijama i lokalnim deformacionim karakteristikama
- dilatacijama u materijalu strukture. Poznavanjem
globalnih i lokalnih deformacionih karakteristika strukture
ostvarujemo mogućnost da pratimo ponašanje strukture u
celini ili nekog njenog segmenta. Osnovni cilj ovog istraživanja
je provera algoritma proračuna za dobijanje vertikalnih
pomeranja - ugiba strukture, na osnovu poznatih vrednosti
dilatacija u materijalu strukture, pri delovanju opterećenja.
Provera algoritma sprovodi se poređenjem numeričkih i eksperimentalnih rezultata.
T2  - Integritet i vek konstrukcija, specijalno izdanje
T1  - Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija
EP  - 78
SP  - 73
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_495
ER  - 

@article{
author = "Flajs, Željko and Janković, Ksenija and Stojanović, Marko and Bojović, Dragan",
year = "2023",
abstract = "Ponašanje struktura pod delovanjem različitih vrsta opterećenja
određene su njenim deformacionim karakteristikama,
globalnim deformacionim karakteristikama – pomeranjima
i rotacijama i lokalnim deformacionim karakteristikama
- dilatacijama u materijalu strukture. Poznavanjem
globalnih i lokalnih deformacionih karakteristika strukture
ostvarujemo mogućnost da pratimo ponašanje strukture u
celini ili nekog njenog segmenta. Osnovni cilj ovog istraživanja
je provera algoritma proračuna za dobijanje vertikalnih
pomeranja - ugiba strukture, na osnovu poznatih vrednosti
dilatacija u materijalu strukture, pri delovanju opterećenja.
Provera algoritma sprovodi se poređenjem numeričkih i eksperimentalnih rezultata.",
journal = "Integritet i vek konstrukcija, specijalno izdanje",
title = "Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija",
pages = "78-73",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_495"
}

Flajs, Ž., Janković, K., Stojanović, M.,& Bojović, D.. (2023). Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija. in Integritet i vek konstrukcija, specijalno izdanje, 23, 73-78.
https://hdl.handle.net/21.15107/rcub_rims_495

Flajs Ž, Janković K, Stojanović M, Bojović D. Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija. in Integritet i vek konstrukcija, specijalno izdanje. 2023;23:73-78.
https://hdl.handle.net/21.15107/rcub_rims_495 .

Flajs, Željko, Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, "Proračun ugiba grednih struktura na osnovu izmerenih vrednosti dilatacija" in Integritet i vek konstrukcija, specijalno izdanje, 23 (2023):73-78,
https://hdl.handle.net/21.15107/rcub_rims_495 .

TY  - JOUR
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2023
UR  - http://rims.institutims.rs/handle/123456789/489
AB  - Betonske konstrukcije su često u eksploataciji izložene spoljašnjim uticajima. Preporuke koje definiše evropski stan-dard SRPS EN 206 za korišćenje betona u pojedinim klasa-ma izloženosti nisu dovoljne i iz tog razloga je usvojen i standard SRPS U.M1.206 koji predstavlja nacionalni doda-tak za njegovu primenu. Dejstvo mraza značajno utiče na trajnost betonske konstrukcije jer može da dovede do raza-ranja strukture betona. Zaštita se postiže dodavanjem hemij-skih dodataka koji uvlače vazduh u svež beton. U radu je prikazana mogućnost primene novog dodatka Sika Aer Solid. Ispitivana je otpornost betona na dejstvo mraza, mraza u prisustvu soli za odmrzavanje, prodiranje vode pod pritiskom i koeficijent migracije hlorida u laboratorijskim uslovima i uzorcima izvađenim iz betonskih prefabrikovanih elemenata. Betoni sa Sika Aer Solid su za istu klasu konzistencije u odnosu na aerirane betone imali bolja svojstva i u svežem i u očvrslom stanju.
T2  - Integritet i vek konstrukcija
T1  - Izbor komponentnih materijala za beton sa aspekta trajnosti
EP  - 34
SP  - 25
VL  - 23
UR  - https://hdl.handle.net/21.15107/rcub_rims_489
ER  - 

@article{
author = "Janković, Ksenija and Bojović, Dragan and Stojanović, Marko",
year = "2023",
abstract = "Betonske konstrukcije su često u eksploataciji izložene spoljašnjim uticajima. Preporuke koje definiše evropski stan-dard SRPS EN 206 za korišćenje betona u pojedinim klasa-ma izloženosti nisu dovoljne i iz tog razloga je usvojen i standard SRPS U.M1.206 koji predstavlja nacionalni doda-tak za njegovu primenu. Dejstvo mraza značajno utiče na trajnost betonske konstrukcije jer može da dovede do raza-ranja strukture betona. Zaštita se postiže dodavanjem hemij-skih dodataka koji uvlače vazduh u svež beton. U radu je prikazana mogućnost primene novog dodatka Sika Aer Solid. Ispitivana je otpornost betona na dejstvo mraza, mraza u prisustvu soli za odmrzavanje, prodiranje vode pod pritiskom i koeficijent migracije hlorida u laboratorijskim uslovima i uzorcima izvađenim iz betonskih prefabrikovanih elemenata. Betoni sa Sika Aer Solid su za istu klasu konzistencije u odnosu na aerirane betone imali bolja svojstva i u svežem i u očvrslom stanju.",
journal = "Integritet i vek konstrukcija",
title = "Izbor komponentnih materijala za beton sa aspekta trajnosti",
pages = "34-25",
volume = "23",
url = "https://hdl.handle.net/21.15107/rcub_rims_489"
}

Janković, K., Bojović, D.,& Stojanović, M.. (2023). Izbor komponentnih materijala za beton sa aspekta trajnosti. in Integritet i vek konstrukcija, 23, 25-34.
https://hdl.handle.net/21.15107/rcub_rims_489

Janković K, Bojović D, Stojanović M. Izbor komponentnih materijala za beton sa aspekta trajnosti. in Integritet i vek konstrukcija. 2023;23:25-34.
https://hdl.handle.net/21.15107/rcub_rims_489 .

Janković, Ksenija, Bojović, Dragan, Stojanović, Marko, "Izbor komponentnih materijala za beton sa aspekta trajnosti" in Integritet i vek konstrukcija, 23 (2023):25-34,
https://hdl.handle.net/21.15107/rcub_rims_489 .

TY  - CONF
AU  - Stojanović, Marko
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Antić Aranđelović, Lana
AU  - Lončar, Ljiljana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/556
AB  - Concrete in which the air entraining admixture was used can exhibit behavior which alternate from the ‘standard’ concrete behavior when employed in the structural design. The origin of this problem can be found in the changeable properties of the componential materials, incompatibility of the utilized raw materials, influence of extreme conditions on the concrete curing (i.e., increased temperature), etc. The possibility of using other additives for the concrete exposed to various environmental influences was investigated. Sustainability of concrete production and resource efficiency urged the searching for an adequate waste material or an industrial byproduct which would improve freezing/thawing resistance of concrete. In this paper the possibility of Sika Aer Solid powdery additive and recycled rubber as a substitute for the air entraining admixture was investigated. Four mixtures were designed: referent concrete with no air entraining admixtures, concrete with Sika Aer Solid, concrete with recycled rubber, and concrete with air entraining admixture. The properties of fresh and hardened concrete were examined. The obtained results of compressive strength, resistance to freezing/thawing cycles and depth of water penetration under pressure for altered concretes indicate that it is possible to use alternative additives as substitutes for air entraining admixture.
C3  - Serbian Ceramic Society Conference - Advanced Ceramics and Applications X: New Frontiers in Multifunctional Material Science and Processing, Book of Abstracts
T1  - Possibility of Using Other Additives as Replacement for Air Entraining Admixture in Concrete
UR  - https://hdl.handle.net/21.15107/rcub_rims_556
ER  - 

@conference{
author = "Stojanović, Marko and Janković, Ksenija and Bojović, Dragan and Antić Aranđelović, Lana and Lončar, Ljiljana",
year = "2022",
abstract = "Concrete in which the air entraining admixture was used can exhibit behavior which alternate from the ‘standard’ concrete behavior when employed in the structural design. The origin of this problem can be found in the changeable properties of the componential materials, incompatibility of the utilized raw materials, influence of extreme conditions on the concrete curing (i.e., increased temperature), etc. The possibility of using other additives for the concrete exposed to various environmental influences was investigated. Sustainability of concrete production and resource efficiency urged the searching for an adequate waste material or an industrial byproduct which would improve freezing/thawing resistance of concrete. In this paper the possibility of Sika Aer Solid powdery additive and recycled rubber as a substitute for the air entraining admixture was investigated. Four mixtures were designed: referent concrete with no air entraining admixtures, concrete with Sika Aer Solid, concrete with recycled rubber, and concrete with air entraining admixture. The properties of fresh and hardened concrete were examined. The obtained results of compressive strength, resistance to freezing/thawing cycles and depth of water penetration under pressure for altered concretes indicate that it is possible to use alternative additives as substitutes for air entraining admixture.",
journal = "Serbian Ceramic Society Conference - Advanced Ceramics and Applications X: New Frontiers in Multifunctional Material Science and Processing, Book of Abstracts",
title = "Possibility of Using Other Additives as Replacement for Air Entraining Admixture in Concrete",
url = "https://hdl.handle.net/21.15107/rcub_rims_556"
}

Stojanović, M., Janković, K., Bojović, D., Antić Aranđelović, L.,& Lončar, L.. (2022). Possibility of Using Other Additives as Replacement for Air Entraining Admixture in Concrete. in Serbian Ceramic Society Conference - Advanced Ceramics and Applications X: New Frontiers in Multifunctional Material Science and Processing, Book of Abstracts.
https://hdl.handle.net/21.15107/rcub_rims_556

Stojanović M, Janković K, Bojović D, Antić Aranđelović L, Lončar L. Possibility of Using Other Additives as Replacement for Air Entraining Admixture in Concrete. in Serbian Ceramic Society Conference - Advanced Ceramics and Applications X: New Frontiers in Multifunctional Material Science and Processing, Book of Abstracts. 2022;.
https://hdl.handle.net/21.15107/rcub_rims_556 .

Stojanović, Marko, Janković, Ksenija, Bojović, Dragan, Antić Aranđelović, Lana, Lončar, Ljiljana, "Possibility of Using Other Additives as Replacement for Air Entraining Admixture in Concrete" in Serbian Ceramic Society Conference - Advanced Ceramics and Applications X: New Frontiers in Multifunctional Material Science and Processing, Book of Abstracts (2022),
https://hdl.handle.net/21.15107/rcub_rims_556 .

TY  - GEN
AU  - Stojanović, Marko
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Lončar, Ljiljana
AU  - Antić Aranđelović, Lana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/553
AB  - Da bi se obezbedila trajnost betona, potrebno je zaštititi betonske infrastrukturne objekte u zemljama u kojima se smenjuju godišnja doba i različiti vremenski uslovi, jer je njihovo izlaganje ciklusima zamrzavanja i odmrzavanja (eng. FTC – freezing and thawing cycles) u prisustvu soli za odmrzavanje jedan od najagresivnijih mehanizama za propadanje betona. Šteta od mraza, progresivno pogoršanje koje započinje ljuštenjem površinskog maltera i završava potpunim urušavanjem betonskih elemenata, glavna je briga kada se beton koristi u hladnijim regionima. Ponavljanjem ciklusa zamrzavanja i odmrzavanja javljaju se prsline i pukotine, a beton postepeno gubi svoja prvobitno projektovana svojstva. Betoni koji će biti izloženi dejstvu mraza u svom sastavu imaju veće količine cementa, a problem primene veće količine cementa se poslednjih godina posebno naglašava zbog sve većeg zagađenja životne sredine i stvaranja efekta staklene bašte. Betoni koji se izlažu dejstvu mraza i/ili mraza i soli štite se aeriranjem. To često nije garancija da će se postići projektovan sadržaj vazduha u svežem betonu. Zbog toga se htelo doći do rešenja nekim drugim sredstvima zaštite betona izloženih dejstvu mraza. Jedno od rešenja je Sika Aer Solid. Kako bi ovaj materijal mogao da se primenjuje na našem podneblju i sa našim materijalima, obavljena su ispitivanja svojstava betona u svežem i očvrslom stanju, sa posebnom osvrtom na trajnost betona. Primenom Sika Aer Solid kao zamene za aerant, moguće je proizvesti betonske elemente čija svojstva zadovoljavaju zahtevane  klase izloženosti koje su definisane prema SRPS EN 206 i SRPS U.M1.206. Dodavanjem Sika Aer Solid u beton postiže se trajnost betonskih prefabrikovanih elemenata kroz postizanje otpornosti na dejstvo mraza, otpornosti na dejstvo mraza u prisustvu soli za odmrzavanje, otpornosti na penetraciju vode pod prisitkom, kao i otpornosti na migraciju hloridnih jona.
T1  - Poboljšanje svojstava prefabrikovanih betonskih elemenata primenom SIKA AER SOLID
UR  - https://hdl.handle.net/21.15107/rcub_rims_553
ER  - 

@misc{
author = "Stojanović, Marko and Janković, Ksenija and Bojović, Dragan and Lončar, Ljiljana and Antić Aranđelović, Lana",
year = "2022",
abstract = "Da bi se obezbedila trajnost betona, potrebno je zaštititi betonske infrastrukturne objekte u zemljama u kojima se smenjuju godišnja doba i različiti vremenski uslovi, jer je njihovo izlaganje ciklusima zamrzavanja i odmrzavanja (eng. FTC – freezing and thawing cycles) u prisustvu soli za odmrzavanje jedan od najagresivnijih mehanizama za propadanje betona. Šteta od mraza, progresivno pogoršanje koje započinje ljuštenjem površinskog maltera i završava potpunim urušavanjem betonskih elemenata, glavna je briga kada se beton koristi u hladnijim regionima. Ponavljanjem ciklusa zamrzavanja i odmrzavanja javljaju se prsline i pukotine, a beton postepeno gubi svoja prvobitno projektovana svojstva. Betoni koji će biti izloženi dejstvu mraza u svom sastavu imaju veće količine cementa, a problem primene veće količine cementa se poslednjih godina posebno naglašava zbog sve većeg zagađenja životne sredine i stvaranja efekta staklene bašte. Betoni koji se izlažu dejstvu mraza i/ili mraza i soli štite se aeriranjem. To često nije garancija da će se postići projektovan sadržaj vazduha u svežem betonu. Zbog toga se htelo doći do rešenja nekim drugim sredstvima zaštite betona izloženih dejstvu mraza. Jedno od rešenja je Sika Aer Solid. Kako bi ovaj materijal mogao da se primenjuje na našem podneblju i sa našim materijalima, obavljena su ispitivanja svojstava betona u svežem i očvrslom stanju, sa posebnom osvrtom na trajnost betona. Primenom Sika Aer Solid kao zamene za aerant, moguće je proizvesti betonske elemente čija svojstva zadovoljavaju zahtevane  klase izloženosti koje su definisane prema SRPS EN 206 i SRPS U.M1.206. Dodavanjem Sika Aer Solid u beton postiže se trajnost betonskih prefabrikovanih elemenata kroz postizanje otpornosti na dejstvo mraza, otpornosti na dejstvo mraza u prisustvu soli za odmrzavanje, otpornosti na penetraciju vode pod prisitkom, kao i otpornosti na migraciju hloridnih jona.",
title = "Poboljšanje svojstava prefabrikovanih betonskih elemenata primenom SIKA AER SOLID",
url = "https://hdl.handle.net/21.15107/rcub_rims_553"
}

Stojanović, M., Janković, K., Bojović, D., Lončar, L.,& Antić Aranđelović, L.. (2022). Poboljšanje svojstava prefabrikovanih betonskih elemenata primenom SIKA AER SOLID. .
https://hdl.handle.net/21.15107/rcub_rims_553

Stojanović M, Janković K, Bojović D, Lončar L, Antić Aranđelović L. Poboljšanje svojstava prefabrikovanih betonskih elemenata primenom SIKA AER SOLID. 2022;.
https://hdl.handle.net/21.15107/rcub_rims_553 .

Stojanović, Marko, Janković, Ksenija, Bojović, Dragan, Lončar, Ljiljana, Antić Aranđelović, Lana, "Poboljšanje svojstava prefabrikovanih betonskih elemenata primenom SIKA AER SOLID" (2022),
https://hdl.handle.net/21.15107/rcub_rims_553 .

TY  - CONF
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Lončar, Ljiljana
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/507
AB  - The paper presents the influence of the application of different types of fibers in
concrete beams on the flexural tensile strength. All concrete beams were made of
the same component materials and composition, except for the amount of fiber,
which is varied. After hardening, the height of the concrete beams in the central
part was reduced to 125 mm by cutting. The measurement of flexural tensile
strength by was performed according to SRPS EN 14651. Based on the test
results, depending on the type, shape, quantity and distribution of fibers, the
values of ultimate and residual strengths were analyzed.
C3  - Proceedings of the ASES International Symposium, Aranđelovac, Serbia
T1  - Influence of different types of fibers on flexural tensile strength
EP  - 439
SP  - 439
UR  - https://hdl.handle.net/21.15107/rcub_rims_507
ER  - 

@conference{
author = "Stojanović, Marko and Antić Aranđelović, Lana and Janković, Ksenija and Bojović, Dragan and Lončar, Ljiljana",
year = "2022",
abstract = "The paper presents the influence of the application of different types of fibers in
concrete beams on the flexural tensile strength. All concrete beams were made of
the same component materials and composition, except for the amount of fiber,
which is varied. After hardening, the height of the concrete beams in the central
part was reduced to 125 mm by cutting. The measurement of flexural tensile
strength by was performed according to SRPS EN 14651. Based on the test
results, depending on the type, shape, quantity and distribution of fibers, the
values of ultimate and residual strengths were analyzed.",
journal = "Proceedings of the ASES International Symposium, Aranđelovac, Serbia",
title = "Influence of different types of fibers on flexural tensile strength",
pages = "439-439",
url = "https://hdl.handle.net/21.15107/rcub_rims_507"
}

Stojanović, M., Antić Aranđelović, L., Janković, K., Bojović, D.,& Lončar, L.. (2022). Influence of different types of fibers on flexural tensile strength. in Proceedings of the ASES International Symposium, Aranđelovac, Serbia, 439-439.
https://hdl.handle.net/21.15107/rcub_rims_507

Stojanović M, Antić Aranđelović L, Janković K, Bojović D, Lončar L. Influence of different types of fibers on flexural tensile strength. in Proceedings of the ASES International Symposium, Aranđelovac, Serbia. 2022;:439-439.
https://hdl.handle.net/21.15107/rcub_rims_507 .

Stojanović, Marko, Antić Aranđelović, Lana, Janković, Ksenija, Bojović, Dragan, Lončar, Ljiljana, "Influence of different types of fibers on flexural tensile strength" in Proceedings of the ASES International Symposium, Aranđelovac, Serbia (2022):439-439,
https://hdl.handle.net/21.15107/rcub_rims_507 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/510
AB  - Self-compacting concrete (SCC) exhibits increased flowability in comparison with the conventional vibrated concrete. This is most often achieved through the incorporation of high amounts of extra-fine particles (i.e. mineral fillers) in the composition of self-compacting concrete. The purpose is to limit the share of cement while reaching the required large paste content. The components and their proportions, as well as type and particle size of filler, casting, manufacturing and curing conditions of SCC, significantly influence the concrete’s fresh and hardened properties. Among fillers employed in SCC, fly ash is one of the most frequent due to its availability and the low cost. Fly as is an industrial by-product and a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as self-compacting concrete. A comparative study of performances of SCC with different quantities of fly ash and standard SCC with limestone filler was conducted in this study. The experimental program included the production of reference self-compacting concrete based on Portland cement and limestone filler (P1) and additional three experimental self-compacting concrete mixtures (P2, P3, P4) with different quantities of fly ash addition. Behaviour of self-compacting concrete in the fresh state is primarily influenced by type of mineral additive used. The effect that fly ash addition has on the physical behaviour and mechanical properties of fresh experimental SCC concrete samples was discussed. The properties and technology of self-compacting concretes in their fresh state in regard to the alternations in water/cement (w/c) ratios are monitored and explained in this paper. Concrete mixtures with fly ash had lower density in comparisons with the referent concrete. For the same class of consistency, higher amount of water was needed for preparation of SCC mixture with fly ash. Increasing w/c ratio induced more favourable properties of self-compacting concrete in its fresh state.
C3  - Proceeding of the 8th International Conference "Civil engineering-science and practice" -GNP 2022
T1  - Influence of water/cement ratio on the properties of fresh SCC with fly ash addition
UR  - https://hdl.handle.net/21.15107/rcub_rims_510
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2022",
abstract = "Self-compacting concrete (SCC) exhibits increased flowability in comparison with the conventional vibrated concrete. This is most often achieved through the incorporation of high amounts of extra-fine particles (i.e. mineral fillers) in the composition of self-compacting concrete. The purpose is to limit the share of cement while reaching the required large paste content. The components and their proportions, as well as type and particle size of filler, casting, manufacturing and curing conditions of SCC, significantly influence the concrete’s fresh and hardened properties. Among fillers employed in SCC, fly ash is one of the most frequent due to its availability and the low cost. Fly as is an industrial by-product and a highly efficient mineral additive whose role is reflected in improvements of microstructure packing, strength and durability of non-shaped composite building materials such as self-compacting concrete. A comparative study of performances of SCC with different quantities of fly ash and standard SCC with limestone filler was conducted in this study. The experimental program included the production of reference self-compacting concrete based on Portland cement and limestone filler (P1) and additional three experimental self-compacting concrete mixtures (P2, P3, P4) with different quantities of fly ash addition. Behaviour of self-compacting concrete in the fresh state is primarily influenced by type of mineral additive used. The effect that fly ash addition has on the physical behaviour and mechanical properties of fresh experimental SCC concrete samples was discussed. The properties and technology of self-compacting concretes in their fresh state in regard to the alternations in water/cement (w/c) ratios are monitored and explained in this paper. Concrete mixtures with fly ash had lower density in comparisons with the referent concrete. For the same class of consistency, higher amount of water was needed for preparation of SCC mixture with fly ash. Increasing w/c ratio induced more favourable properties of self-compacting concrete in its fresh state.",
journal = "Proceeding of the 8th International Conference "Civil engineering-science and practice" -GNP 2022",
title = "Influence of water/cement ratio on the properties of fresh SCC with fly ash addition",
url = "https://hdl.handle.net/21.15107/rcub_rims_510"
}

Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2022). Influence of water/cement ratio on the properties of fresh SCC with fly ash addition. in Proceeding of the 8th International Conference "Civil engineering-science and practice" -GNP 2022.
https://hdl.handle.net/21.15107/rcub_rims_510

Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Influence of water/cement ratio on the properties of fresh SCC with fly ash addition. in Proceeding of the 8th International Conference "Civil engineering-science and practice" -GNP 2022. 2022;.
https://hdl.handle.net/21.15107/rcub_rims_510 .

Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Influence of water/cement ratio on the properties of fresh SCC with fly ash addition" in Proceeding of the 8th International Conference "Civil engineering-science and practice" -GNP 2022 (2022),
https://hdl.handle.net/21.15107/rcub_rims_510 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Terzić, Anja
AU  - Stanković, Srboljub
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/511
AB  - Leteći pepeo je visoko efikasan mineralni aditiv čija se uloga ogleda u poboljšanju mikrostrukture, čvrstoće i izdržljivosti kompozitnih građevinskih materijala kao što je samozbijajući beton (SCC). Referentni SCC je projktovan sa portland cementom, rečnim agregatom i krečnjačkim filerom. Eksperimentalni program obuhvatao je proizvodnju pet samozbijajućih betona sa različitim vrstama sitnog agregata, filera i specijalnog dodatka za povećanje otpornosti na dejstvo mraza. Ispitivani su i diskutovani efekti koje baritni pesak i dodaci imaju na svojstva svežeg SCC (sleganje rasprostiranjem, test V-levka i test L-kutije) i čvrstoću pri pritisku.
C3  - XXVIII Kongres DIMK i IX Kongres SIGP sa međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija – Zbornik radova
T1  - Svojstva teškog SCC sa letećim pepelom
EP  - 396
SP  - 389
UR  - https://hdl.handle.net/21.15107/rcub_rims_511
ER  - 

@conference{
author = "Janković, Ksenija and Stojanović, Marko and Bojović, Dragan and Terzić, Anja and Stanković, Srboljub",
year = "2022",
abstract = "Leteći pepeo je visoko efikasan mineralni aditiv čija se uloga ogleda u poboljšanju mikrostrukture, čvrstoće i izdržljivosti kompozitnih građevinskih materijala kao što je samozbijajući beton (SCC). Referentni SCC je projktovan sa portland cementom, rečnim agregatom i krečnjačkim filerom. Eksperimentalni program obuhvatao je proizvodnju pet samozbijajućih betona sa različitim vrstama sitnog agregata, filera i specijalnog dodatka za povećanje otpornosti na dejstvo mraza. Ispitivani su i diskutovani efekti koje baritni pesak i dodaci imaju na svojstva svežeg SCC (sleganje rasprostiranjem, test V-levka i test L-kutije) i čvrstoću pri pritisku.",
journal = "XXVIII Kongres DIMK i IX Kongres SIGP sa međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija – Zbornik radova",
title = "Svojstva teškog SCC sa letećim pepelom",
pages = "396-389",
url = "https://hdl.handle.net/21.15107/rcub_rims_511"
}

Janković, K., Stojanović, M., Bojović, D., Terzić, A.,& Stanković, S.. (2022). Svojstva teškog SCC sa letećim pepelom. in XXVIII Kongres DIMK i IX Kongres SIGP sa međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija – Zbornik radova, 389-396.
https://hdl.handle.net/21.15107/rcub_rims_511

Janković K, Stojanović M, Bojović D, Terzić A, Stanković S. Svojstva teškog SCC sa letećim pepelom. in XXVIII Kongres DIMK i IX Kongres SIGP sa međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija – Zbornik radova. 2022;:389-396.
https://hdl.handle.net/21.15107/rcub_rims_511 .

Janković, Ksenija, Stojanović, Marko, Bojović, Dragan, Terzić, Anja, Stanković, Srboljub, "Svojstva teškog SCC sa letećim pepelom" in XXVIII Kongres DIMK i IX Kongres SIGP sa međunarodnim simpozijumom o istraživanjima i primeni savremenih dostignuća u građevinarstvu u oblasti materijala i konstrukcija – Zbornik radova (2022):389-396,
https://hdl.handle.net/21.15107/rcub_rims_511 .

TY  - CONF
AU  - Janković, Ksenija
AU  - Stojanović, Marko
AU  - Terzić, Anja
AU  - Bojović, Dragan
AU  - Stanković, Srboljub
PY  - 2022
UR  - http://rims.institutims.rs/handle/123456789/508
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  - International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress, Aranđelovac, Serbia
T1  - Impact of fine aggregate particle size and morphology on the early strengths of SCC
EP  - 429
SP  - 422
UR  - https://hdl.handle.net/21.15107/rcub_rims_508
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 = "International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress, Aranđelovac, Serbia",
title = "Impact of fine aggregate particle size and morphology on the early strengths of SCC",
pages = "429-422",
url = "https://hdl.handle.net/21.15107/rcub_rims_508"
}

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 International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress, Aranđelovac, Serbia, 422-429.
https://hdl.handle.net/21.15107/rcub_rims_508

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 International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress, Aranđelovac, Serbia. 2022;:422-429.
https://hdl.handle.net/21.15107/rcub_rims_508 .

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 International Congress Proceedings / Association of Structural Engineers of Serbia, 16. Congress, Aranđelovac, Serbia (2022):422-429,
https://hdl.handle.net/21.15107/rcub_rims_508 .

TY  - CONF
AU  - Stojanović, Marko
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Antić Aranđelović, Lana
AU  - Lončar, Ljiljana
PY  - 2021
UR  - http://rims.institutims.rs/handle/123456789/650
AB  - The influence of the application of different types of fibres on the flexural strength of beams cut from slabs of
sprayed concrete is presented in the paper. Fibres of different materials, shapes and dimensions were used. All types of
concrete were made of the same component materials and composition, except the amount of fibres that is varied. Slabs
of dimensions 60x60x10 cm were made using a concrete spraying machine. After curing, the beams of 75x125x500 mm
were cut from the beams. Flexural strength of the beams was tested according to SRPS EN 14488-3 at the age of 28
days. Based on the test results, depending on the type, shape, amount and distribution of fibres, values of ultimate and
residual strengths were analysed. The highest values of ultimate and residual strength at deformations of 0.5-1, 0.5-2 and
0.5-4 mm had sprayed concrete (or shotcrete) with the addition of 40 mm polypropylene fibres.
C3  - Proceedings of the 2nd International Conference CoMS 2020/21
T1  - Influence of different types of fibers on the ultimate and residual flexural strength of sprayed concrete
UR  - https://hdl.handle.net/21.15107/rcub_rims_650
ER  - 

@conference{
author = "Stojanović, Marko and Janković, Ksenija and Bojović, Dragan and Antić Aranđelović, Lana and Lončar, Ljiljana",
year = "2021",
abstract = "The influence of the application of different types of fibres on the flexural strength of beams cut from slabs of
sprayed concrete is presented in the paper. Fibres of different materials, shapes and dimensions were used. All types of
concrete were made of the same component materials and composition, except the amount of fibres that is varied. Slabs
of dimensions 60x60x10 cm were made using a concrete spraying machine. After curing, the beams of 75x125x500 mm
were cut from the beams. Flexural strength of the beams was tested according to SRPS EN 14488-3 at the age of 28
days. Based on the test results, depending on the type, shape, amount and distribution of fibres, values of ultimate and
residual strengths were analysed. The highest values of ultimate and residual strength at deformations of 0.5-1, 0.5-2 and
0.5-4 mm had sprayed concrete (or shotcrete) with the addition of 40 mm polypropylene fibres.",
journal = "Proceedings of the 2nd International Conference CoMS 2020/21",
title = "Influence of different types of fibers on the ultimate and residual flexural strength of sprayed concrete",
url = "https://hdl.handle.net/21.15107/rcub_rims_650"
}

Stojanović, M., Janković, K., Bojović, D., Antić Aranđelović, L.,& Lončar, L.. (2021). Influence of different types of fibers on the ultimate and residual flexural strength of sprayed concrete. in Proceedings of the 2nd International Conference CoMS 2020/21.
https://hdl.handle.net/21.15107/rcub_rims_650

Stojanović M, Janković K, Bojović D, Antić Aranđelović L, Lončar L. Influence of different types of fibers on the ultimate and residual flexural strength of sprayed concrete. in Proceedings of the 2nd International Conference CoMS 2020/21. 2021;.
https://hdl.handle.net/21.15107/rcub_rims_650 .

Stojanović, Marko, Janković, Ksenija, Bojović, Dragan, Antić Aranđelović, Lana, Lončar, Ljiljana, "Influence of different types of fibers on the ultimate and residual flexural strength of sprayed concrete" in Proceedings of the 2nd International Conference CoMS 2020/21 (2021),
https://hdl.handle.net/21.15107/rcub_rims_650 .

TY  - CHAP
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Stojanović, Marko
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/338
AB  - Ultra-high performance concrete (UHPC) is a modern composite material with extremely good mechanical characteristics. The application of nanoparticles in concrete is one of the possibilities for improving its properties. Nanoparticles such as nano-SiO2 (NS), nano-Al2O3 (NA), nano-TiO2 (NT), nano-Fe2O3 (NF), nano-ZnO2, nanoclay (NC), carbon nanotubes (CNT), and carbon nanofibers (CNF) can be used in cementitious materials. Nanomaterial in UHPC accelerates the hydration of cement, densifies the microstructure, improves strength, and thus contributes to its durability. Component materials and curing regimes significantly affect the properties of UHPC. For this reason, the influence of various supplementary cementitious materials such as metakaolin and fine ground fly ash and curing regimes (water, steam, and autoclave curing) on the properties of UHPC has been analyzed. The influence of nanosilica as the most frequently applied nanomaterial and the curing regimes on the strength of UHPC is studied. Nanomaterial dispersion and distribution have significant influence on the properties of cement-based materials. Techniques for better homogenization of nanoparticles are listed.
PB  - Elsevier
T2  - Nanotechnology in Eco-efficient Construction: Materials, Processes and Applications
T1  - Influence of nanoparticles on the strength of ultra-high performance concrete
EP  - 42
SP  - 13
DO  - 10.1016/B978-0-08-102641-0.00002-5
ER  - 

@inbook{
author = "Janković, Ksenija and Bojović, Dragan and Stojanović, Marko",
year = "2018",
abstract = "Ultra-high performance concrete (UHPC) is a modern composite material with extremely good mechanical characteristics. The application of nanoparticles in concrete is one of the possibilities for improving its properties. Nanoparticles such as nano-SiO2 (NS), nano-Al2O3 (NA), nano-TiO2 (NT), nano-Fe2O3 (NF), nano-ZnO2, nanoclay (NC), carbon nanotubes (CNT), and carbon nanofibers (CNF) can be used in cementitious materials. Nanomaterial in UHPC accelerates the hydration of cement, densifies the microstructure, improves strength, and thus contributes to its durability. Component materials and curing regimes significantly affect the properties of UHPC. For this reason, the influence of various supplementary cementitious materials such as metakaolin and fine ground fly ash and curing regimes (water, steam, and autoclave curing) on the properties of UHPC has been analyzed. The influence of nanosilica as the most frequently applied nanomaterial and the curing regimes on the strength of UHPC is studied. Nanomaterial dispersion and distribution have significant influence on the properties of cement-based materials. Techniques for better homogenization of nanoparticles are listed.",
publisher = "Elsevier",
journal = "Nanotechnology in Eco-efficient Construction: Materials, Processes and Applications",
booktitle = "Influence of nanoparticles on the strength of ultra-high performance concrete",
pages = "42-13",
doi = "10.1016/B978-0-08-102641-0.00002-5"
}

Janković, K., Bojović, D.,& Stojanović, M.. (2018). Influence of nanoparticles on the strength of ultra-high performance concrete. in Nanotechnology in Eco-efficient Construction: Materials, Processes and Applications
Elsevier., 13-42.
https://doi.org/10.1016/B978-0-08-102641-0.00002-5

Janković K, Bojović D, Stojanović M. Influence of nanoparticles on the strength of ultra-high performance concrete. in Nanotechnology in Eco-efficient Construction: Materials, Processes and Applications. 2018;:13-42.
doi:10.1016/B978-0-08-102641-0.00002-5 .

Janković, Ksenija, Bojović, Dragan, Stojanović, Marko, "Influence of nanoparticles on the strength of ultra-high performance concrete" in Nanotechnology in Eco-efficient Construction: Materials, Processes and Applications (2018):13-42,
https://doi.org/10.1016/B978-0-08-102641-0.00002-5 . .

TY  - JOUR
AU  - Bojović, Dragan
AU  - Bašić, Nevena
AU  - Janković, Ksenija
AU  - Senić, Aleksandar
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/333
AB  - Čvrstoća pri pritisku jeste svojstvo koje je veoma značajno u građevinarstvu, te postoji izražena potreba da se razviju metode za praćenje prirasta čvrstoće pri pritisku betona u konstrukciji. Prema zakonskim propisima Republike Srbije, procena čvrstoće pri pritisku betona u konstrukciji radi se na osnovu rezultata dobijenih tokom laboratorijskih ispitivanja u konstantnim uslovima. U radu se koriste rezultati dobijeni u laboratoriji i porede se rezultati dobijeni pomoću metode za merenje zrelosti betona, koje se baziraju na korelaciji između čvrstoće betona, starosti betona i temperaturnih uslova i rezultata dobijenih pomoću ConReg 706 uređaja, koji takođe uzima u obzir temperaturu van betona. Primenjena su dva pristupa za određivanje zrelosti betona - Nurse & Saul i Arrhenius. Za potrebe ovog istaživanja, pripremljene su dve različite betonske mešavine - MB 35 i MB 40, obe klase C30/37. Odabrani konstrukcijski elementi betonirani su tokom leta, na mostu preko reke Save, kod Ostružnice, u blizini Beograda. Testirani elementi mosta jesu kolovozna ploča, naglavna greda i ležišna greda. Ispitivanje je pokazalo da temperatura koja se razvija u masivnim delovima konstrukcije znatno utiče na čvrstoću betona, pored već dobro poznatih faktora, kao što su vodo-cementni odnos, tip i kvalitet komponentnih materijala i drugi.
AB  - Compressive strength is a property of significant importance for civil engineering; consequently, there have been strong need for developing method, which will estimate rise of concrete compressive strength in construction. According to Serbian legislation, assessment of compressive strength in construction relies on laboratory results obtained under constant conditions. This paper presents and compares results obtained in laboratory, results obtained by maturity method, which is based on correlation between concrete compressive strength, concrete age and ambient temperature, and the results obtained by ConReg 706 instrument, which also takes in consideration external environment and concrete temperature. Two approaches of maturity method, Nurse & Saul and Arrhenius have been applied. For this research, concrete class C30/37 was used, prepared as two different mix designs, MB35 and MB 40. Casting was performed in summer time in Ostruznica bridge near Belgrade. Elements that were casted are deck slab, pile cup and bearing beam.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Procena čvrstoće betona pri pritisku, korišćenjem različitih funkcija zrelosti betona - primer iz prakse
T1  - Assessment of concrete compressive strength using different maturity functions: Case study
EP  - 65
IS  - 3
SP  - 55
VL  - 61
DO  - 10.5937/GRMK1803055B
ER  - 

@article{
author = "Bojović, Dragan and Bašić, Nevena and Janković, Ksenija and Senić, Aleksandar",
year = "2018",
abstract = "Čvrstoća pri pritisku jeste svojstvo koje je veoma značajno u građevinarstvu, te postoji izražena potreba da se razviju metode za praćenje prirasta čvrstoće pri pritisku betona u konstrukciji. Prema zakonskim propisima Republike Srbije, procena čvrstoće pri pritisku betona u konstrukciji radi se na osnovu rezultata dobijenih tokom laboratorijskih ispitivanja u konstantnim uslovima. U radu se koriste rezultati dobijeni u laboratoriji i porede se rezultati dobijeni pomoću metode za merenje zrelosti betona, koje se baziraju na korelaciji između čvrstoće betona, starosti betona i temperaturnih uslova i rezultata dobijenih pomoću ConReg 706 uređaja, koji takođe uzima u obzir temperaturu van betona. Primenjena su dva pristupa za određivanje zrelosti betona - Nurse & Saul i Arrhenius. Za potrebe ovog istaživanja, pripremljene su dve različite betonske mešavine - MB 35 i MB 40, obe klase C30/37. Odabrani konstrukcijski elementi betonirani su tokom leta, na mostu preko reke Save, kod Ostružnice, u blizini Beograda. Testirani elementi mosta jesu kolovozna ploča, naglavna greda i ležišna greda. Ispitivanje je pokazalo da temperatura koja se razvija u masivnim delovima konstrukcije znatno utiče na čvrstoću betona, pored već dobro poznatih faktora, kao što su vodo-cementni odnos, tip i kvalitet komponentnih materijala i drugi., Compressive strength is a property of significant importance for civil engineering; consequently, there have been strong need for developing method, which will estimate rise of concrete compressive strength in construction. According to Serbian legislation, assessment of compressive strength in construction relies on laboratory results obtained under constant conditions. This paper presents and compares results obtained in laboratory, results obtained by maturity method, which is based on correlation between concrete compressive strength, concrete age and ambient temperature, and the results obtained by ConReg 706 instrument, which also takes in consideration external environment and concrete temperature. Two approaches of maturity method, Nurse & Saul and Arrhenius have been applied. For this research, concrete class C30/37 was used, prepared as two different mix designs, MB35 and MB 40. Casting was performed in summer time in Ostruznica bridge near Belgrade. Elements that were casted are deck slab, pile cup and bearing beam.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Procena čvrstoće betona pri pritisku, korišćenjem različitih funkcija zrelosti betona - primer iz prakse, Assessment of concrete compressive strength using different maturity functions: Case study",
pages = "65-55",
number = "3",
volume = "61",
doi = "10.5937/GRMK1803055B"
}

Bojović, D., Bašić, N., Janković, K.,& Senić, A.. (2018). Procena čvrstoće betona pri pritisku, korišćenjem različitih funkcija zrelosti betona - primer iz prakse. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 61(3), 55-65.
https://doi.org/10.5937/GRMK1803055B

Bojović D, Bašić N, Janković K, Senić A. Procena čvrstoće betona pri pritisku, korišćenjem različitih funkcija zrelosti betona - primer iz prakse. in Građevinski materijali i konstrukcije. 2018;61(3):55-65.
doi:10.5937/GRMK1803055B .

Bojović, Dragan, Bašić, Nevena, Janković, Ksenija, Senić, Aleksandar, "Procena čvrstoće betona pri pritisku, korišćenjem različitih funkcija zrelosti betona - primer iz prakse" in Građevinski materijali i konstrukcije, 61, no. 3 (2018):55-65,
https://doi.org/10.5937/GRMK1803055B . .

TY  - JOUR
AU  - Janković, Ksenija
AU  - Bojović, Dragan
AU  - Lončar, Ljiljana
AU  - Stojanović, Marko
AU  - Antić Aranđelović, Lana
PY  - 2018
UR  - http://rims.institutims.rs/handle/123456789/330
AB  - Chemical, physical and mechanical properties of bottom ash from two thermal power plants were analysed in order to evaluate the quality of bottom ash and to determine the possibility of its use in composite materials. It was found that the bottom ash samples from both power plants show good properties enabling their practical use, and that they also meet most of the criteria specified for fly ash. Samples in which 4, 8, 12 and 16% of fine aggregate was replaced with bottom ash were tested. The results meet criteria of applicable regulations for concrete, which justifies the use of bottom ash in construction industry.
PB  - Croatian Soc Civil Engineers-Hsgi, Zagreb
T2  - Gradjevinar
T1  - Possibility of using bottom ash in precast concrete products
EP  - 419
IS  - 5
SP  - 413
VL  - 70
DO  - 10.14256/JCE.1589.2016
ER  - 

@article{
author = "Janković, Ksenija and Bojović, Dragan and Lončar, Ljiljana and Stojanović, Marko and Antić Aranđelović, Lana",
year = "2018",
abstract = "Chemical, physical and mechanical properties of bottom ash from two thermal power plants were analysed in order to evaluate the quality of bottom ash and to determine the possibility of its use in composite materials. It was found that the bottom ash samples from both power plants show good properties enabling their practical use, and that they also meet most of the criteria specified for fly ash. Samples in which 4, 8, 12 and 16% of fine aggregate was replaced with bottom ash were tested. The results meet criteria of applicable regulations for concrete, which justifies the use of bottom ash in construction industry.",
publisher = "Croatian Soc Civil Engineers-Hsgi, Zagreb",
journal = "Gradjevinar",
title = "Possibility of using bottom ash in precast concrete products",
pages = "419-413",
number = "5",
volume = "70",
doi = "10.14256/JCE.1589.2016"
}

Janković, K., Bojović, D., Lončar, L., Stojanović, M.,& Antić Aranđelović, L.. (2018). Possibility of using bottom ash in precast concrete products. in Gradjevinar
Croatian Soc Civil Engineers-Hsgi, Zagreb., 70(5), 413-419.
https://doi.org/10.14256/JCE.1589.2016

Janković K, Bojović D, Lončar L, Stojanović M, Antić Aranđelović L. Possibility of using bottom ash in precast concrete products. in Gradjevinar. 2018;70(5):413-419.
doi:10.14256/JCE.1589.2016 .

Janković, Ksenija, Bojović, Dragan, Lončar, Ljiljana, Stojanović, Marko, Antić Aranđelović, Lana, "Possibility of using bottom ash in precast concrete products" in Gradjevinar, 70, no. 5 (2018):413-419,
https://doi.org/10.14256/JCE.1589.2016 . .

TY  - JOUR
AU  - Janković, Ksenija
AU  - Šušić, Nenad
AU  - Stojanović, Marko
AU  - Bojović, Dragan
AU  - Lončar, Ljiljana
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/325
AB  - In order to examine the differences in chemical composition and the possibility of using mine tailings in mortar and concrete production, samples were taken from the landfill and directly from the production. Tailings test results showed no pozzolanic activity and that its application in concrete can be only a partial replacement of aggregate. This paper presents the possibility of using tailings in self-compacting concrete made with Portland cement and sulphate resistant cement. Concrete specimens in which the aggregate fraction 0/4 mm was replaced with 10 and 20 % of tailings were examined. The resistance to freezing and thawing with and without de-icing salts is used as an indicator of concrete durability.
PB  - Univ Osijek, Tech Fac, Slavonski Brod
T2  - Tehnicki Vjesnik-Technical Gazette
T1  - The influence of tailings and cement type on durability properties of self-compacting concrete
EP  - 962
IS  - 3
SP  - 957
VL  - 24
DO  - 10.17559/TV-20160304113800
ER  - 

@article{
author = "Janković, Ksenija and Šušić, Nenad and Stojanović, Marko and Bojović, Dragan and Lončar, Ljiljana",
year = "2017",
abstract = "In order to examine the differences in chemical composition and the possibility of using mine tailings in mortar and concrete production, samples were taken from the landfill and directly from the production. Tailings test results showed no pozzolanic activity and that its application in concrete can be only a partial replacement of aggregate. This paper presents the possibility of using tailings in self-compacting concrete made with Portland cement and sulphate resistant cement. Concrete specimens in which the aggregate fraction 0/4 mm was replaced with 10 and 20 % of tailings were examined. The resistance to freezing and thawing with and without de-icing salts is used as an indicator of concrete durability.",
publisher = "Univ Osijek, Tech Fac, Slavonski Brod",
journal = "Tehnicki Vjesnik-Technical Gazette",
title = "The influence of tailings and cement type on durability properties of self-compacting concrete",
pages = "962-957",
number = "3",
volume = "24",
doi = "10.17559/TV-20160304113800"
}

Janković, K., Šušić, N., Stojanović, M., Bojović, D.,& Lončar, L.. (2017). The influence of tailings and cement type on durability properties of self-compacting concrete. in Tehnicki Vjesnik-Technical Gazette
Univ Osijek, Tech Fac, Slavonski Brod., 24(3), 957-962.
https://doi.org/10.17559/TV-20160304113800

Janković K, Šušić N, Stojanović M, Bojović D, Lončar L. The influence of tailings and cement type on durability properties of self-compacting concrete. in Tehnicki Vjesnik-Technical Gazette. 2017;24(3):957-962.
doi:10.17559/TV-20160304113800 .

Janković, Ksenija, Šušić, Nenad, Stojanović, Marko, Bojović, Dragan, Lončar, Ljiljana, "The influence of tailings and cement type on durability properties of self-compacting concrete" in Tehnicki Vjesnik-Technical Gazette, 24, no. 3 (2017):957-962,
https://doi.org/10.17559/TV-20160304113800 . .

TY  - JOUR
AU  - Bojović, Dragan
AU  - Aranđelović, Bojan
AU  - Janković, Ksenija
AU  - Senić, Aleksandar
AU  - Stojanović, Marko
PY  - 2017
UR  - http://rims.institutims.rs/handle/123456789/316
AB  - Prednaprezanjem konstruktivnih elemenata omogućava se povećavanje raspona armiranobetonskih konstrukcija. Pri projektovanju i dimenzionisanju prednapregnutih armiranobetonskih konstrukcija, neophodno je poznavanje, odnosno usvajanje većeg broja parametara koji su empirijski određeni. Za prednapregnute konstrukcije od osnovnog je značaja da se odredi nivo sile naprezanja kablova. Nivo sile prednaprezanja, pored drugih parametara, umnogome zavisi od koeficijenta trenja kablova i koeficijenta imperfekcije izvođenja. Ovi koeficijenti definisani su standardima za projektovanje ili su ih definisali proizvođači sistema prednaprezanja. Koeficijenti su definisani u širokim opsezima, dok je za projektovanje neophodno poznavanje što tačnijih vrednosti, kako bi se dobio dobar projekat i jeftinija konstrukcija. Putem eksperimentalnog rada in-situ, određen je opseg vrednosti koeficijenta trenja kablova i upoređen je sa standardom definisanim opsezima.
AB  - Prestressing structural elements allows an increase in the spans of reinforced concrete structures. In the design and dimensioning of prestressed reinforced concrete structures it is necessary to know, that is to adopt a number of parameters which are empirically determined. Determining the level of the tension force of the cables is of primary importance for prestressed structures. The level of tensioning force, in addition to other parameters, greatly depends on the friction coefficient of cables and the imperfection coefficient of execution. These coefficients are defined by standards for the design or by the manufacturer of the prestressing system. The coefficients are defined in wide ranges, while for the design, the knowledge of the most accurate values is necessary in order to obtain a good design and cheaper structures. Through experimental work in-situ the range of the values of the coefficient of friction of cables is determined and compared with ranges defined by the standard.
PB  - Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd
T2  - Građevinski materijali i konstrukcije
T1  - Određivanje in-situ koeficijenta trenja i imperfekcije kablova za prednaprezanje
T1  - Determination of the in situ coefficient of friction and imperfection of prestressing cables
EP  - 56
IS  - 2
SP  - 49
VL  - 60
DO  - 10.5937/grmk1702049B
ER  - 

@article{
author = "Bojović, Dragan and Aranđelović, Bojan and Janković, Ksenija and Senić, Aleksandar and Stojanović, Marko",
year = "2017",
abstract = "Prednaprezanjem konstruktivnih elemenata omogućava se povećavanje raspona armiranobetonskih konstrukcija. Pri projektovanju i dimenzionisanju prednapregnutih armiranobetonskih konstrukcija, neophodno je poznavanje, odnosno usvajanje većeg broja parametara koji su empirijski određeni. Za prednapregnute konstrukcije od osnovnog je značaja da se odredi nivo sile naprezanja kablova. Nivo sile prednaprezanja, pored drugih parametara, umnogome zavisi od koeficijenta trenja kablova i koeficijenta imperfekcije izvođenja. Ovi koeficijenti definisani su standardima za projektovanje ili su ih definisali proizvođači sistema prednaprezanja. Koeficijenti su definisani u širokim opsezima, dok je za projektovanje neophodno poznavanje što tačnijih vrednosti, kako bi se dobio dobar projekat i jeftinija konstrukcija. Putem eksperimentalnog rada in-situ, određen je opseg vrednosti koeficijenta trenja kablova i upoređen je sa standardom definisanim opsezima., Prestressing structural elements allows an increase in the spans of reinforced concrete structures. In the design and dimensioning of prestressed reinforced concrete structures it is necessary to know, that is to adopt a number of parameters which are empirically determined. Determining the level of the tension force of the cables is of primary importance for prestressed structures. The level of tensioning force, in addition to other parameters, greatly depends on the friction coefficient of cables and the imperfection coefficient of execution. These coefficients are defined by standards for the design or by the manufacturer of the prestressing system. The coefficients are defined in wide ranges, while for the design, the knowledge of the most accurate values is necessary in order to obtain a good design and cheaper structures. Through experimental work in-situ the range of the values of the coefficient of friction of cables is determined and compared with ranges defined by the standard.",
publisher = "Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd",
journal = "Građevinski materijali i konstrukcije",
title = "Određivanje in-situ koeficijenta trenja i imperfekcije kablova za prednaprezanje, Determination of the in situ coefficient of friction and imperfection of prestressing cables",
pages = "56-49",
number = "2",
volume = "60",
doi = "10.5937/grmk1702049B"
}

Bojović, D., Aranđelović, B., Janković, K., Senić, A.,& Stojanović, M.. (2017). Određivanje in-situ koeficijenta trenja i imperfekcije kablova za prednaprezanje. in Građevinski materijali i konstrukcije
Društvo za ispitivanje i istraživanje materijala i konstrukcija Srbije, Beograd., 60(2), 49-56.
https://doi.org/10.5937/grmk1702049B

Bojović D, Aranđelović B, Janković K, Senić A, Stojanović M. Određivanje in-situ koeficijenta trenja i imperfekcije kablova za prednaprezanje. in Građevinski materijali i konstrukcije. 2017;60(2):49-56.
doi:10.5937/grmk1702049B .

Bojović, Dragan, Aranđelović, Bojan, Janković, Ksenija, Senić, Aleksandar, Stojanović, Marko, "Određivanje in-situ koeficijenta trenja i imperfekcije kablova za prednaprezanje" in Građevinski materijali i konstrukcije, 60, no. 2 (2017):49-56,
https://doi.org/10.5937/grmk1702049B . .

TY  - THES
AU  - Bojović, Dragan
PY  - 2017
UR  - http://www.cris.uns.ac.rs/DownloadFileServlet/Disertacija150088572878676.pdf?controlNumber=(BISIS)10
UR  - https://nardus.mpn.gov.rs/handle/123456789/8654
UR  - http://www.cris.uns.ac.rs/record.jsf?recordId=104910&source=NaRDuS&language=sr
UR  - http://www.cris.uns.ac.rs/DownloadFileServlet/IzvestajKomisije150088577565241.pdf?controlNumber=(BIS
UR  - http://rims.institutims.rs/handle/123456789/8
AB  - U disertaciji je razmatran problem nosivosti ankera na čupanje i smicanje u betonu veoma visokih čvrstoća. Izdvojena su tri parametra koji imaju značajan uticaj na nosivost ankera. Realizovano je obimno eksperimentalno istraživanje, koje je koncipirano tako da se dalje može koristiti u numeričkim analizama. Zaključci su izvedeni na osnovu numeričke analize i definisanja uticaja variranih parametara pomoću neuronskih mreža i faktorijalnog eksperimenta.
AB  - The dissertation discusses the problem of load anchors to pulling out and shearing in ultra high strength concrete. Allocate three parameters that have a significant impact on the load capacity of anchors. Realized an extensive experimental research, which is designed so that could be used in numerical analysis. Conclusions are drawn on the basis of a numerical analysis, and defining the influence of varying the parameters using the neural network and the factorial experiment.
PB  - Univerzitet u Novom Sadu, Fakultet tehničkih nauka
T1  - Parametarska analiza nosivosti ankera na zatezanje i smicanje u mikroarmiranom betonu veoma visokih čvrstoća faktorijalnom analizom i neuronskim mrežama
T1  - Parametric analysis capacity of anchors in tension andshear at fiber reinforced ultra high strength concretefactorial analysis and neural networks
UR  - https://hdl.handle.net/21.15107/rcub_nardus_8654
ER  - 

@phdthesis{
author = "Bojović, Dragan",
year = "2017",
abstract = "U disertaciji je razmatran problem nosivosti ankera na čupanje i smicanje u betonu veoma visokih čvrstoća. Izdvojena su tri parametra koji imaju značajan uticaj na nosivost ankera. Realizovano je obimno eksperimentalno istraživanje, koje je koncipirano tako da se dalje može koristiti u numeričkim analizama. Zaključci su izvedeni na osnovu numeričke analize i definisanja uticaja variranih parametara pomoću neuronskih mreža i faktorijalnog eksperimenta., The dissertation discusses the problem of load anchors to pulling out and shearing in ultra high strength concrete. Allocate three parameters that have a significant impact on the load capacity of anchors. Realized an extensive experimental research, which is designed so that could be used in numerical analysis. Conclusions are drawn on the basis of a numerical analysis, and defining the influence of varying the parameters using the neural network and the factorial experiment.",
publisher = "Univerzitet u Novom Sadu, Fakultet tehničkih nauka",
title = "Parametarska analiza nosivosti ankera na zatezanje i smicanje u mikroarmiranom betonu veoma visokih čvrstoća faktorijalnom analizom i neuronskim mrežama, Parametric analysis capacity of anchors in tension andshear at fiber reinforced ultra high strength concretefactorial analysis and neural networks",
url = "https://hdl.handle.net/21.15107/rcub_nardus_8654"
}

Bojović, D.. (2017). Parametarska analiza nosivosti ankera na zatezanje i smicanje u mikroarmiranom betonu veoma visokih čvrstoća faktorijalnom analizom i neuronskim mrežama. 
Univerzitet u Novom Sadu, Fakultet tehničkih nauka..
https://hdl.handle.net/21.15107/rcub_nardus_8654

Bojović D. Parametarska analiza nosivosti ankera na zatezanje i smicanje u mikroarmiranom betonu veoma visokih čvrstoća faktorijalnom analizom i neuronskim mrežama. 2017;.
https://hdl.handle.net/21.15107/rcub_nardus_8654 .

Bojović, Dragan, "Parametarska analiza nosivosti ankera na zatezanje i smicanje u mikroarmiranom betonu veoma visokih čvrstoća faktorijalnom analizom i neuronskim mrežama" (2017),
https://hdl.handle.net/21.15107/rcub_nardus_8654 .