FraMCoS 7 2010 Jeju, South Korea

Numerical study in the influence of carbonation on the penetration of chloride into concrete

For a reasonable description of combined deterioration – that is, the chloride attack accompany- ing carbonation, an integrated numerical analysis program, which can simulate the chloride penetration, mois- ture transport, and carbonation in the same time and space domain, is…

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Year 2010
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Abstract

For a reasonable description of combined deterioration – that is, the chloride attack accompany- ing carbonation, an integrated numerical analysis program, which can simulate the chloride penetration, mois- ture transport, and carbonation in the same time and space domain, is developed in this study. It is assumed that the main reason for the accelerated penetration of chloride under combined deterioration is re-dissolution of bound chloride as a result of carbonation. After verifying the applicability of developed analysis program by performing a simulation analysis of Lee & Yoon's experimental work, case studies were made in order to investi- gate the influence of carbonation on the penetration of free chloride under various environmental conditions.