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    Volume 44, Issue 6 (November 2016)

    Influence of Steel Rebar Position on Concrete Double-K Fracture Toughness

    (Received 12 March 2015; accepted 16 September 2015)

    Published Online: 29 November 2016

    CODEN: JTEVAB

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    Abstract

    Fracture mechanica is typically used to analyze the crack progration of a concrete material. It can help explore the microscopic crystallographic defects and predict the macroscopic mechanical failure of various solid materials. In this study, rebar positions and notch characteristics effects on the crack progrations were investigated. It was found that the initial fracture toughness values were not related to the rebar positions, but rather the unstable fracture toughness values were slightly associated to the rebar positions. In addition, rebars positions affected the properties of reinforced concrete resistance to the cracking. Moreover, rebars not only improved the ductility of the concrete, but also increased its ultimate bearing capacity.


    Author Information:

    Fan, Xiangqian
    Nanjing Hydraulic Research Inst., Nanjing, Jiangsu

    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, Jiangsu

    Hu, Shaowei
    Nanjing Hydraulic Research Inst., Nanjing, Jiangsu

    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, Jiangsu

    Lu, Jun
    Nanjing Hydraulic Research Inst., Nanjing, Jiangsu

    State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing, Jiangsu


    Stock #: JTE20150101

    ISSN:0090-3973

    DOI: 10.1520/JTE20150101

    Author
    Title Influence of Steel Rebar Position on Concrete Double-K Fracture Toughness
    Symposium ,
    Committee E60