TY  - CONF
AU  - Vidović, Milica
AU  - Dragaš, Jelena
AU  - Koković, Veljko
AU  - Zakić, Dimitrije
AU  - Tepavčević, Miroslav
PY  - 2022
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2901
AB  - The production of ultra-high performance concrete is one of the new ideas in modern construction, developed in the past few decades. A compressive strength higher than 150 MPa has been achieved using a relatively large amount of cement, approximately 800 kg/m3. As the cement industry is one of the largest producers of carbon dioxide, it is clear that the cement amount in concrete should be reduced to minimize greenhouse gases emission and slow down the global warming process. One possibility for that reduction is a replacement of cement with limestone filler.
This paper shows the results of experimental testing of five ultra-high-performance concrete mixtures. A referent mixture and four mixtures with a partial replacement of cement with limestone filler were made and tested. Two types of limestone fillers varying in particle size were used: one with a mean particle size of 2.5 μm and the other one with a mean particle size of 11 μm. Two groups of concrete mixtures were made with 20% and 30% of cement replaced by limestone. All other components: silica fume, quartz sand, water and superplasticizer were kept constant in all mixtures. Limestone filler is selected based on a particle size - so that its particles are the same size or smaller compared to cement. Basic fresh and hardened concrete properties were tested for all mixtures: consistency was determined using standard flow test and 28-day compressive strength was obtained by testing 10-cm cube samples.
Based on the obtained results, it could be concluded that the replacement of cement with limestone brought improvements in compressive strength and workability. The compressive strength of all mixtures was app. 120 MPa, while the mixtures with limestone were more flowable. The economic aspect was also considered. The analysis showed that up to 25% cost reduction can be achieved without compromising the compressive strength of this type of concrete by using limestone as a filler.
PB  - Macedonian Association of Structural Engineers
C3  - 19th International symposium
T1  - Physical and mechanical properties of Ultra-high- performance concrete with limestone
SP  - 807
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2901
ER  - 

@conference{
author = "Vidović, Milica and Dragaš, Jelena and Koković, Veljko and Zakić, Dimitrije and Tepavčević, Miroslav",
year = "2022",
abstract = "The production of ultra-high performance concrete is one of the new ideas in modern construction, developed in the past few decades. A compressive strength higher than 150 MPa has been achieved using a relatively large amount of cement, approximately 800 kg/m3. As the cement industry is one of the largest producers of carbon dioxide, it is clear that the cement amount in concrete should be reduced to minimize greenhouse gases emission and slow down the global warming process. One possibility for that reduction is a replacement of cement with limestone filler.
This paper shows the results of experimental testing of five ultra-high-performance concrete mixtures. A referent mixture and four mixtures with a partial replacement of cement with limestone filler were made and tested. Two types of limestone fillers varying in particle size were used: one with a mean particle size of 2.5 μm and the other one with a mean particle size of 11 μm. Two groups of concrete mixtures were made with 20% and 30% of cement replaced by limestone. All other components: silica fume, quartz sand, water and superplasticizer were kept constant in all mixtures. Limestone filler is selected based on a particle size - so that its particles are the same size or smaller compared to cement. Basic fresh and hardened concrete properties were tested for all mixtures: consistency was determined using standard flow test and 28-day compressive strength was obtained by testing 10-cm cube samples.
Based on the obtained results, it could be concluded that the replacement of cement with limestone brought improvements in compressive strength and workability. The compressive strength of all mixtures was app. 120 MPa, while the mixtures with limestone were more flowable. The economic aspect was also considered. The analysis showed that up to 25% cost reduction can be achieved without compromising the compressive strength of this type of concrete by using limestone as a filler.",
publisher = "Macedonian Association of Structural Engineers",
journal = "19th International symposium",
title = "Physical and mechanical properties of Ultra-high- performance concrete with limestone",
pages = "807",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2901"
}

Vidović, M., Dragaš, J., Koković, V., Zakić, D.,& Tepavčević, M.. (2022). Physical and mechanical properties of Ultra-high- performance concrete with limestone. in 19th International symposium
Macedonian Association of Structural Engineers., 807.
https://hdl.handle.net/21.15107/rcub_grafar_2901

Vidović M, Dragaš J, Koković V, Zakić D, Tepavčević M. Physical and mechanical properties of Ultra-high- performance concrete with limestone. in 19th International symposium. 2022;:807.
https://hdl.handle.net/21.15107/rcub_grafar_2901 .

Vidović, Milica, Dragaš, Jelena, Koković, Veljko, Zakić, Dimitrije, Tepavčević, Miroslav, "Physical and mechanical properties of Ultra-high- performance concrete with limestone" in 19th International symposium (2022):807,
https://hdl.handle.net/21.15107/rcub_grafar_2901 .

TY  - JOUR
AU  - Mitrović, Stefan
AU  - Popović, Dragana
AU  - Tepavčević, Miroslav
AU  - Zakić, Dimitrije
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2372
AB  - This paper presents the results of the authors' laboratory testing of physical,
mechanical and durability properties of Ultra-high Performance Concrete (UHPC).
The short history of development and application of UHPC concrete is presented in
the first part of this paper while the second part deals with the experimental
investigation, presenting the results of material characterization obtained from
physical-mechanical and durability tests. Based on the results shown in the paper,
the mean value of compressive strength obtained at 28 days is 114 MPa, with the
average density of 2270 kg/m3 in hardened state. The results showed that tested
UHPC belongs to the highest class of water impermeability V-III, as well as the
highest class MS0 (without visible damage) in a simulated freeze-thaw environment
and de-icing salt attack test. Also, the highest class XM3 for abrasion resistance
was achieved. Additional tests showed that the tested concrete fulfils the
requirements for the highest exposure classes XC4 and XD4, in terms of resistance
to carbonation and the penetration of chloride ions. Conclusions and
recommendations for further development and possible application of UHPC are
presented at the end of paper.
PB  - Society for Materials and Structures Testing of Serbia
PB  - University of Belgrade, Faculty of Civil Engineering
PB  - Association of Structural Engineers of Serbia
T2  - Building materials and structures
T1  - Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC)
VL  - 64
DO  - 10.5937/GRMK2102109M
ER  - 

@article{
author = "Mitrović, Stefan and Popović, Dragana and Tepavčević, Miroslav and Zakić, Dimitrije",
year = "2021",
abstract = "This paper presents the results of the authors' laboratory testing of physical,
mechanical and durability properties of Ultra-high Performance Concrete (UHPC).
The short history of development and application of UHPC concrete is presented in
the first part of this paper while the second part deals with the experimental
investigation, presenting the results of material characterization obtained from
physical-mechanical and durability tests. Based on the results shown in the paper,
the mean value of compressive strength obtained at 28 days is 114 MPa, with the
average density of 2270 kg/m3 in hardened state. The results showed that tested
UHPC belongs to the highest class of water impermeability V-III, as well as the
highest class MS0 (without visible damage) in a simulated freeze-thaw environment
and de-icing salt attack test. Also, the highest class XM3 for abrasion resistance
was achieved. Additional tests showed that the tested concrete fulfils the
requirements for the highest exposure classes XC4 and XD4, in terms of resistance
to carbonation and the penetration of chloride ions. Conclusions and
recommendations for further development and possible application of UHPC are
presented at the end of paper.",
publisher = "Society for Materials and Structures Testing of Serbia, University of Belgrade, Faculty of Civil Engineering, Association of Structural Engineers of Serbia",
journal = "Building materials and structures",
title = "Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC)",
volume = "64",
doi = "10.5937/GRMK2102109M"
}

Mitrović, S., Popović, D., Tepavčević, M.,& Zakić, D.. (2021). Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC). in Building materials and structures
Society for Materials and Structures Testing of Serbia., 64.
https://doi.org/10.5937/GRMK2102109M

Mitrović S, Popović D, Tepavčević M, Zakić D. Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC). in Building materials and structures. 2021;64.
doi:10.5937/GRMK2102109M .

Mitrović, Stefan, Popović, Dragana, Tepavčević, Miroslav, Zakić, Dimitrije, "Physical-mechanical properties and durability of Ultra-high Performance Concrete (UHPC)" in Building materials and structures, 64 (2021),
https://doi.org/10.5937/GRMK2102109M . .

TY  - CONF
AU  - Mitrović, Stefan
AU  - Popović, Dragana
AU  - Tepavčević, Miroslav
AU  - Zakić, Dimitrije
PY  - 2021
UR  - https://grafar.grf.bg.ac.rs/handle/123456789/2369
AB  - Tema rada su betoni ultra visokih čvrstoća sa dodatkom čeličnih vlakana, u stručnoj literaturi poznati kao „Ultra-High Perfomance Steel Fibre Reinforced Concrete“ (UHPSFRC). U prvom delu rada prikazan je kratak istorijat razvoja i primene UHPSFRC betona. Drugi deo rada predstavlja eksperimentalni deo istraživanja sa prikazom rezultata sprovedenih testova fizičko-mehaničkih svojstava. Na kraju je dat zaključak na osnovu analize rezultata ispitivanja, kao i ocena mogućnosti primene ovog kompozitnog materijala u našim uslovima.
C3  - Zbornik radova sa Nacionalnog simpozijuma DGKS, Društvо građevinskih konstruktera Srbije
T1  - Fizičko-mehanička svojstva betona visokih čvrstoća ojačanih čeličnim vlaknima (UHPSFRC)
SP  - 238
UR  - https://hdl.handle.net/21.15107/rcub_grafar_2369
ER  - 

@conference{
author = "Mitrović, Stefan and Popović, Dragana and Tepavčević, Miroslav and Zakić, Dimitrije",
year = "2021",
abstract = "Tema rada su betoni ultra visokih čvrstoća sa dodatkom čeličnih vlakana, u stručnoj literaturi poznati kao „Ultra-High Perfomance Steel Fibre Reinforced Concrete“ (UHPSFRC). U prvom delu rada prikazan je kratak istorijat razvoja i primene UHPSFRC betona. Drugi deo rada predstavlja eksperimentalni deo istraživanja sa prikazom rezultata sprovedenih testova fizičko-mehaničkih svojstava. Na kraju je dat zaključak na osnovu analize rezultata ispitivanja, kao i ocena mogućnosti primene ovog kompozitnog materijala u našim uslovima.",
journal = "Zbornik radova sa Nacionalnog simpozijuma DGKS, Društvо građevinskih konstruktera Srbije",
title = "Fizičko-mehanička svojstva betona visokih čvrstoća ojačanih čeličnim vlaknima (UHPSFRC)",
pages = "238",
url = "https://hdl.handle.net/21.15107/rcub_grafar_2369"
}

Mitrović, S., Popović, D., Tepavčević, M.,& Zakić, D.. (2021). Fizičko-mehanička svojstva betona visokih čvrstoća ojačanih čeličnim vlaknima (UHPSFRC). in Zbornik radova sa Nacionalnog simpozijuma DGKS, Društvо građevinskih konstruktera Srbije, 238.
https://hdl.handle.net/21.15107/rcub_grafar_2369

Mitrović S, Popović D, Tepavčević M, Zakić D. Fizičko-mehanička svojstva betona visokih čvrstoća ojačanih čeličnim vlaknima (UHPSFRC). in Zbornik radova sa Nacionalnog simpozijuma DGKS, Društvо građevinskih konstruktera Srbije. 2021;:238.
https://hdl.handle.net/21.15107/rcub_grafar_2369 .

Mitrović, Stefan, Popović, Dragana, Tepavčević, Miroslav, Zakić, Dimitrije, "Fizičko-mehanička svojstva betona visokih čvrstoća ojačanih čeličnim vlaknima (UHPSFRC)" in Zbornik radova sa Nacionalnog simpozijuma DGKS, Društvо građevinskih konstruktera Srbije (2021):238,
https://hdl.handle.net/21.15107/rcub_grafar_2369 .