Abstract
The study on quantitative evaluation with concrete about synergistic effect of penetration of chloride ion and carbonation, is very few. This study was conducted to get information on synergistic effects of penetration and diffusion of chloride ion into concrete and carbonation and to examine evaluation method of synergistic effects of penetration of chloride ion and carbonation. The test results indicated chloride ions in concrete diffused inside by carbonation and chloride ions penetrated for longer term than actual exposure term were accumulated. And so we introduced a coefficient k to consider the effect of carbonation in diffusion equation which is based on the Fick's second law.
