Consideration about Chloride Ion Diffusion Coefficient Estimated by Electric Resistivity of Concrete Exposed in Tidal Zone
نویسندگان
چکیده
It is well known that the electric resistivity of concrete is one of the useful durability indicators for chloride induced deterioration of concrete structures. In this study, the influence of air temperature and relative water content ratio in concrete on some measuring results of the electric resistivity was investigated by using the concrete specimens which were exposed in tidal zone. In addition, this paper compared the apparent chloride ion diffusion coefficient of the concrete specimens with the estimation chloride ion diffusion coefficient evaluated by some measuring results of the electric resistivity and the estimation formula which was introduced from Nernst-Planck equation. As a result, it was obvious that high temperature or high relative water content ratio made the electric resistivity low. Moreover, it was confirmed that there was a good correlation between the estimation chloride ion diffusion coefficient and the apparent chloride ion diffusion coefficient.
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