Heavyweight Ultra-High-Performance Concrete with Micro-Reinforcement
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Janković, Ksenija
Stanković, Srboljub
Bojović, Dragan

Stojanović, Marko

Antić Aranđelović, Lana

Terzić, Anja

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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 ga...mma ray absorption at energies below 300 keV.
Keywords:
Construction materials / Nano-additives / Steel fibers / RapidAir testing / Porosity / Radiation shieldingSource:
Serbian Ceramic Society Conference “Advanced Ceramic and Application XI – New frontiers in multifunctional material science and processing”, Book of Abstracts, Belgrade, Serbia, 2023, 83-Funding / projects:
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Institut za ispitivanje materijalaTY - 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 .