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    Effect of rubber aggregate size on static and dynamic compressive properties of rubberized concrete

    91427.pdf (1.960Mb)
    Access Status
    Open access
    Authors
    Pham, Thong
    Renaud, N.
    Pang, V.L.
    Shi, F.
    Hao, Hong
    Chen, Wensu
    Date
    2022
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Pham, T.M. and Renaud, N. and Pang, V.L. and Shi, F. and Hao, H. and Chen, W. 2022. Effect of rubber aggregate size on static and dynamic compressive properties of rubberized concrete. Structural Concrete. 23 (4): pp. 2510-2522.
    Source Title
    Structural Concrete
    DOI
    10.1002/suco.202100281
    ISSN
    1464-4177
    Faculty
    Faculty of Science and Engineering
    School
    School of Civil and Mechanical Engineering
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/FL180100196
    URI
    http://hdl.handle.net/20.500.11937/91603
    Collection
    • Curtin Research Publications
    Abstract

    This study experimentally examines the effect of rubber aggregate size on the static and dynamic behavior of rubberized concrete. Rubberized concrete specimens were prepared with different maximum rubber aggregate sizes ranging from 1 to 3 mm to 3 to 5 mm while the rubber content was kept constant at 15% by volume. The dynamic compressive behavior of rubberized concrete was investigated by using split Hopkinson pressure bar (SHPB) tests. The experimental results have shown that rubberized concrete with smaller rubber aggregates showed higher static compressive strength as compared to that with larger rubber aggregates. Meanwhile, the rubber aggregate size did not considerably affect the density of rubberized concrete. The use of smaller rubber aggregate size mitigated the slump reduction of rubberized concrete. Rubberized concrete exhibited obvious sensitivity to strain rate and those with larger rubber aggregates showed higher strain rate sensitivity. The progressive damage of rubberized concrete showed more ductile behavior with bulging failure, which was different from the typical concrete under compression. In general, the use of smaller rubber aggregate size was beneficial to the static compressive strength but less effective to the dynamic compressive strength of rubberized concrete as compared to those with larger rubber aggregates.

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