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The comparison of projectile impact resistance of ultra-high-performance fibre-reinforced concrete with various aggregates

  1. 1.
    0546126 - ÚTAM 2022 RIV FR eng C - Konferenční příspěvek (zahraniční konf.)
    Drdlová, M. - Šperl, Martin
    The comparison of projectile impact resistance of ultra-high-performance fibre-reinforced concrete with various aggregates.
    EPJ Web of Conferences. Vol. 250. Paris: EDP Sciences, 2021 - (Gálvez Díaz-Rubio, F.; Cendón Franco, D.), č. článku 06007. E-ISSN 2100-014X.
    [DYMAT 2021 - 13th International conference on the mechanical and physical behaviour of materials under dynamic loading. Madrid (ES), 20.09.2021-24.09.2021]
    Grant CEP: GA TA ČR(CZ) FW01010021
    Institucionální podpora: RVO:68378297
    Klíčová slova: ultra-high-performance fibre-reinforced concrete (UHPFRC) * ballistic load * projectile impact resistance
    Obor OECD: Applied mechanics
    https://doi.org/10.1051/epjconf/202125006007

    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.
    Trvalý link: http://hdl.handle.net/11104/0322686

     
     
Počet záznamů: 1