STUDY ON ESTIMATION FOR COMPRESSIVE STRENGTH OF CONCRETE IN STRUCTURE BY ULTRASONIC METHOD

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  • WATANABE Satoshi
    Research Engineer, Technology Center, Taisei Corp., Ph.D.
  • HISHIKAWA Kazumi
    General Manager, Construction Department, The General Environmental Technos Co., Ltd.
  • KAMAE Kengo
    Manager, Construction Department, The General Environmental Technos Co., Ltd.
  • NAMIKI Satoru
    Team Leader, Technology Center, Taisei Corp.

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  • 超音波法による構造体コンクリート強度の推定に関する研究
  • チョウオンパホウ ニ ヨル コウゾウタイ コンクリート キョウド ノ スイテイ ニ カンスル ケンキュウ

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Abstract

 In this study, for the purpose of improvement of estimation accuracy for compressive strength of concrete by ultrasonic method, a measurement method for ultrasonic velocity and a strength estimation method for concrete were investigated. In the experiment with reinforced concrete members of actual size, the precision of proposed method for measuring ultrasonic velocity of inner concrete was confirmed to be high. Further, the estimated value of compressive strength of concrete in structure by proposed strength estimation method was close to the actual measurement value.

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