A novel indirect tensile test method to measure the biaxial tensile strength of concretes and other quasibrittle materials

Goangseup Zi, Hongseob Oh, Sun Kyu Park

    Research output: Contribution to journalArticlepeer-review

    32 Citations (Scopus)

    Abstract

    A novel indirect tensile test method, the biaxial flexure test (BFT) method, has been developed to measure the biaxial tensile strength of concretes. The classical modulus of rupture (MOR) test has been generalized to three dimensions. In this method, we use a circular plate as the new test specimen. This plate is supported by an annular ring. We apply an external load to this specimen through a circular edge. The centers of the specimen, the loading device and the support are identical. The biaxial tensile strength measured by this new method is about 19% greater than the uniaxial tensile strength obtained from the classical modulus of rupture test as reported by other researchers. However, at the same time, we also found that the stochastic deviation of the biaxial tensile strength is about 63% greater than the uniaxial strength.

    Original languageEnglish
    Pages (from-to)751-756
    Number of pages6
    JournalCement and Concrete Research
    Volume38
    Issue number6
    DOIs
    Publication statusPublished - 2008 Jun

    Keywords

    • Biaxial strength
    • Concrete
    • Indirect test
    • Quasibrittle materials
    • Tensile strength

    ASJC Scopus subject areas

    • Building and Construction
    • General Materials Science

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