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The comparison of projectile impact resistance of ultra-high-performance fibre-reinforced concrete with various aggregates
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SYSNO ASEP 0546126 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The comparison of projectile impact resistance of ultra-high-performance fibre-reinforced concrete with various aggregates Author(s) Drdlová, M. (CZ)
Šperl, Martin (UTAM-F) RID, SAINumber of authors 2 Article number 06007 Source Title EPJ Web of Conferences, 250. - Paris : EDP Sciences, 2021 / Gálvez Díaz-Rubio F. ; Cendón Franco D. A. Number of pages 7 s. Publication form Online - E Action DYMAT 2021 - 13th International conference on the mechanical and physical behaviour of materials under dynamic loading Event date 20.09.2021 - 24.09.2021 VEvent location Madrid Country ES - Spain Event type WRD Language eng - English Country FR - France Keywords ultra-high-performance fibre-reinforced concrete (UHPFRC) ; ballistic load ; projectile impact resistance OECD category Applied mechanics R&D Projects FW01010021 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UTAM-F - RVO:68378297 DOI 10.1051/epjconf/202125006007 Annotation In order to apply the ultra-high-performance fibre-reinforced concrete (UHPFRC) in the constructions of ballistic protective structures, the impact resistance of UHPFRC has been investigated experimentally by conducting the high-speed projectile penetration tests. 5 mixtures with basalt and corundum aggregates with various grain size have been prepared and subjected to the quasi-static and 7.62 x 54R B32 API projectile impact load using the striking velocity of 850 m/s. The influence of the strength, size and material of the aggregate on the projectile impact resistance represented by differential efficiency factor (DEF), structural integrity and area and height of impact crater has been evaluated. The superior projectile resistance of UHPFRC with corundum has been observed. Regarding the size of the aggregates, the incorporation of coarser aggregates brings better projectile impact resistance. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2022 Electronic address https://doi.org/10.1051/epjconf/202125006007
Number of the records: 1