Shrinkage-induced Damage Evolution for Concrete Overlay

    Volume 40, Issue 5 (September 2012)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 1 August 2012

    Page Count: 5


    Wang, Guiming
    Wuhan Univ. of Technology, Luoshi Rd. 122Wuhan,

    Kong, Yun
    Wuhan Univ. of Technology, Wuhan,

    Guo, Zhanqi
    Wuhan Univ. of Technology, Wuhan,

    Shui, Zhonghe
    Wuhan Univ. of Technology, Wuhan,

    Leng, Zheng
    Wuhan Univ. of Technology, Wuhan,

    (Received 5 March 2012; accepted 30 April 2012)

    Abstract

    In this paper, we investigate the development of stress and the debonding behavior of thin bonded concrete overlays under restrained conditions. The results show us that the fractured mode of a concrete repair system will change clearly along the new concrete with higher shrinkage deformation to crack along the interfacial layer, and with increasing intensity strength, the interfacial layer becomes stronger so that it is hard for the concrete repair system to fail. It is difficult to predict the exact crack pathway of a concrete repair system unless the condition of the meso-structure is known.


    Paper ID: JTE20120045

    DOI: 10.1520/JTE20120045

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    Author
    Title Shrinkage-induced Damage Evolution for Concrete Overlay
    Symposium , 0000-00-00
    Committee C09