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A Study of the Effect of Mineral Admixtures on the Chloride Diffusion of the Concrete Immersed in Chloride Solution
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 Title & Authors
A Study of the Effect of Mineral Admixtures on the Chloride Diffusion of the Concrete Immersed in Chloride Solution
Kim Dong-Seok; Yoo Jae-Kang; Park Sang-Joon; Won Cheol; Kim Young-Jin;
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The corrosion of reinforcement induced by chloride ingress is the main deterioration cause of coastal reinforced concrete structures. In this paper, an experimental study was executed to investigate the effect of the kinds and replacement ratios of mineral admixtures (fly-ash, ground granulated blast-furnace slag silica fume and meta-kaolin), W/B and curing time on chloride diffusion of concrete by long-time immersion test in chloride solution. According to the result, the use of mineral admixtures was effective in improving the resistant to chloride ingress. The chloride penetration depth and diffusion coefficient were decreased as replacement ratios of mineral admixture were increased. The kind and replacement ratio of the mineral admixture are more important than the W/B in reducing the chloride diffusion of concrete. Chloride binding capacity of mineral admixture, which was sequenced in the order of MK
immersion test;admixtures;curing time;chloride penetration depth;diffusion coefficient;
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