Numerical Study on the Mechanism of Anti-localization of Deformation in Expansive Concrete

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  • 膨張コンクリートの変形局所化回避挙動メカニズムの数値解析的検討
  • ボウチョウ コンクリート ノ ヘンケイ キョクショカ カイヒ キョドウ メカニズム ノ スウチ カイセキテキ ケントウ

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Abstract

It is reported that chemically prestressed concrete (CPC) shows unique behaviors such as high tension stiffening effect and high deformability. In this paper, the mechanism of those behaviors is discussed. As a result, it is confirmed that many micro cracks are generated in CPC because of initial strain introduced by expansion of expansive agent. CPC didn't show sudden increase in rebar due to cracking. It seems that prestrain and micro cracks reduced localization of deformation.[This abstract is not included in the PDF]

Journal

  • SEISAN KENKYU

    SEISAN KENKYU 62 (6), 605-610, 2010

    Institute of Industrial Science The University of Tokyo

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