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Title |
Effect of Concrete Water-Binder Ratio and Mineral Admixture on Corrosion Estimation by Electro-Chemical Method
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Keywords |
혼화재 ; 염화물 ; 자연전위법 ; 분극저항법 Admixture ; Chloride ; Half-cell method ; Polarization resistance method |
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Abstract |
In this study, when concrete properties are changed by concrete mix proportions or blending of admixtures, the characteristics of electro-chemical method for corrosion assessment of the embedded steel are compared and its causes are analyzed. According to the results, when the ratio of corroding area was less than 10%, the half-cell method was affected by concrete properties. In the case of specimen blended admixtures, it is possible to assess the high-corroded steel qualitatively using the half-cell method. For the polarization resistance method, though the corroding area was less than 10%, it has not affected by concrete properties. However, in case of specimen blended admixtures, the corrosion level of steel was underestimated than OPC specimens having a similar corroding area.
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