PREDICTION ON CARBONATION OF VARIOUS CONCRETE WITH SURFACE WATER ABSORPTION TEST

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  • SEO Wonwoo
    Dept. of Architecture, Faculty of Human-Environment Studies, Kyushu University
  • SHIRAKAWA Toshio
    Dept. of Architecture, Faculty of Architecture and Civil Engineering, Kyushu Sangyo Univ.
  • KOYAMA Tomoyuki
    Dept. of Architecture, Faculty of Human-Environment Studies, Kyushu University

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Other Title
  • 表面吸水試験による種々のコンクリートの中性化予測

Abstract

<p>In this study, the possibility of carbonation prediction using the surface water absorption test was compared and reviewed with the air permeability test for concrete with various water cement ratios, mixed with fly ash with various replacement rates, and concrete placed in normal and hot environments. As a result, the relationship between carbonation coefficient, water absorption coefficient, and effective cement amount was very correlated by proposed equation (4) regardless of the type of mixture, water cement ratio, and hot or normal environment. Therefore, the surface water absorption test method is useful in predicting carbonation for a range of concrete.</p>

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