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http://dx.doi.org/10.5345/JKIC.2009.9.6.071

Effect of Compressive Loading on the Chloride Penetration of Concrete Mixed with Granulated Blast Furnace Slag  

Kim, Dong-Hun (일본국립 홋카이도대학대학원 공학연구과)
Lim, Nam-Gi (동명대학교 건축대학 건축공학과)
Horiguchi, Takashi (일본국립 홋카이도대학대학원 공학연구과)
Publication Information
Journal of the Korea Institute of Building Construction / v.9, no.6, 2009 , pp. 71-78 More about this Journal
Abstract
The analysis of the effect of loading on chloride penetration into concrete is very important. In this study, we confirmed that the chloride penetration rates for plain and BFS concrete were increased by 47% and 89% under compressive stress, respectively. The diffusion coefficient of BFS concrete was lower than for conventional concrete with no BFS, no loads, and under stressed states. Therefore, BFS substitution plays an important role in the repression of chloride penetration even under compressive stress. Under compressive stress,the diffusion coefficient for BFS concrete was higher with increasing stress, and this was also the case for plain concrete. However, BFS concrete was strongly influenced by compressive stress in comparison to plain concrete. We investigated the effect of the difference of specific surfaces on the diffusion coefficient. As a result, the larger specific surface of BFS exhibited a lower diffusion coefficient. This tendency was most pronounced under the high stress conditions.
Keywords
Chloride Penetration; Diffusion Coefficient; BFS; Compressive Stress; Non-Steady Migration Test;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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