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http://dx.doi.org/10.4334/JKCI.2005.17.5.679

A Study of the Effect of Mineral Admixtures on the Chloride Diffusion of the Concrete Immersed in Chloride Solution  

Kim Dong-Seok (Institute of Daewoo Construction Technology)
Yoo Jae-Kang (Institute of Daewoo Construction Technology)
Park Sang-Joon (Institute of Daewoo Construction Technology)
Won Cheol (Institute of Daewoo Construction Technology)
Kim Young-Jin (Institute of Daewoo Construction Technology)
Publication Information
Journal of the Korea Concrete Institute / v.17, no.5, 2005 , pp. 679-686 More about this Journal
Abstract
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
Keywords
immersion test; admixtures; curing time; chloride penetration depth; diffusion coefficient;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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