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Relationship between Chloride Diffusivity and the Fundamental Properties of Concrete  

Choi, Doo-Sun ((주)다산글로벌컨설팅)
Choi, Jae-Jin (공주대학교 건설환경공학부)
Publication Information
Journal of the Korean Society of Hazard Mitigation / v.9, no.1, 2009 , pp. 15-20 More about this Journal
Abstract
Marine concrete structure is exposed to salt injury and deteriorated by steel corrosion due to chloride ions diffusion. It, therefore, is very important to estimate the chloride diffusivity in concrete. In this paper the compressive strength and permeable pore volume of concrete are measured and the diffusion coefficient and penetration depth of chloride ions in concrete were investigated to estimate the chloride diffusivity efficiently. To correlate these results each other, regression analysis was done. The results showed a good linear relation between chloride diffusivity and the fundamental properties of concrete and the chloride diffusivity of concrete with water-cement ratios of $40%{\sim}60%$ were about $2.5{\sim}6.6{\times}10^{-12}m^2/s$.
Keywords
Accelerated test; diffusion; Compressive strength; Permeable pore volume; Regression analysis;
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