Consideration about chloride ion diffusion coefficient estimated by electric resistivity of concrete exposed in tidal zone

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1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Article numbere372
JournalSustainable Construction Materials and Technologies
Volume2013-August
Publication statusPublished - 2013 Jan 1
Event3rd International Conference on Sustainable Construction Materials and Technologies, SCMT 2013 - Kyoto, Japan
Duration: 2013 Aug 182013 Aug 21

Keywords

  • Chloride ion
  • Diffusion coefficient
  • Electric resistivity
  • Nernst-planck equation
  • Relative water content ratio

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Mechanics of Materials
  • Materials Science(all)

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