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    Crack Propagation and Failure Characteristics of Modeled Concrete with Natural and Brick Aggregates

    Qiong Liu, Jianzhuang Xiao*, Amardeep Singh

    Journal of Renewable Materials, Vol.9, No.7, pp. 1309-1327, 2021, DOI:10.32604/jrm.2021.015326

    Abstract The failure characteristics of recycled concrete containing brick aggregates are still indistinct, especially how the angular aggregates effect the crack propagation. Based on the concept of modeled concrete, the development of cracks in concrete containing the natural aggregate and brick aggregate under a compression loading was studied. The strain distribution was analyzed with the Digital Image Correlation (DIC). The modeled aggregates include circular and squared ones, and the squared modeled aggregates were placed in different orientations, including 0°, 22.5° and 45°. The results show that when the aggregate is placed at 45°, the upper and lower vertices of the aggregate… More >

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