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    ABSTRACT

    Characterization Method of ITZ in Concrete and Measurement of Nominal Compressive Elastic Modulus Based on SEM and DIC

    Jintao He, Dong Lei*, Xuwei Cui, Pengxiang Bai, Feipeng Zhu

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.21, No.4, pp. 78-78, 2019, DOI:10.32604/icces.2019.05228

    Abstract With the combination of scanning electron microscope (SEM) and digital image correlation (DIC), the mechanical properties of interfacial transition zone (ITZ) in concrete are experimentally studied. The experimental compression tests are performed on cuboid samples whose half part is aggregate and the other part is mortar. The morphology of the ITZ is captured by SEM under compressive load, and from the recorded images the deformation of the ITZ is analyzed. After that, the distribution of the nominal compressive elastic modulus of the ITZ is obtained along the distance from the aggregate to the mortar, which… More >

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