PREDICTION OF OCCURRENCE OF CRACKS DUE TO AUTOGENEOUS SHRINKAGE AND DRYING SHRINKAGE

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  • コンクリートの収縮ひび割れ発生予測に関する基礎的研究
  • コンクリート ノ シュウシュク ヒビワレ ハッセイ ヨソク ニ カンスル キソテキ ケンキュウ

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Abstract

Experimental and analytical study on time of cracking due to autogeneous shrinkage and drying shrinkage were performed by using uni-axial specimen with light-weight-ditch steel for restraint of volume change. The effect of various factors for time of cracking, behavior of strain around the point of cracking, applicability of tensile strain capacity and shrinkage stress ratio for critical limit of concrete cracks were examined.<br>The results of this research showed that tensile strain capacity and shrinkage stress ratio are correlated with the age at the time of cracking, these value are applicable to critical limit of concrete cracks.

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