Strain rate effects for strength of geopolymer concrete

K. N. Feng, Z. Pan, D. Ruan, F. Collins, Y. Bai, W. H. Duan

    Research output: Chapter in Book / Conference PaperConference Paperpeer-review

    Abstract

    ![CDATA[The effects of strain rate on compressive and tensile strength of fly ash based geopolymer concrete were investigated experimentally. Four mixes of geopolymer concrete using different alkaline solutions and under vary curing conditions were prepared. One mix of ordinary Portland cement (OPC) concrete was prepared for comparison. Both Quasi-Static tests using standard MTS and dynamic tests using Split-Hopkinson pressures bar (SHPB) were conducted, which were giving varying strain rate loadings from 10 -7 to 10 3 per second. The strain rate effect is presented as the ration of dynamic compressive strength to static compressive strength (DIF). Results show that DIFs of geopolymer concrete are generally higher than those of OPC concrete at stain range of 187/s to 346/s (compression tests) and 7/s to 13/s (splitting tensile tests), respectively. This tendency is independent on loading regimes (compression or tension). This suggests that geopolymer concrete can be used as an alternative construction material to OPC concrete for the structures which has a high risk of being subjected to impact loadings.]]
    Original languageEnglish
    Title of host publicationProceedings of the 6th International Composites Conference (ACUN-6): Composite & Nanocomposites in Civil, Offshore and Mining Infrastructure, Monash University, Clayton, Australia, 14th-16th November 2012
    PublisherMonash University
    Pages405-409
    Number of pages5
    ISBN (Print)9780646585895
    Publication statusPublished - 2012
    EventInternational Composites Conference -
    Duration: 14 Nov 2012 → …

    Conference

    ConferenceInternational Composites Conference
    Period14/11/12 → …

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