Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)
- 1999.04a
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- Pages.437-442
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- 1999
Effects of Chloride Binding on the Cement Hydration at early ages
초기재령에 있어 시멘트 수화에 따른 염화물 고정화 효과
Abstract
Corrosion of steel reinforcment is the most significant factor of deterioration in reinforced concrete structures. Chloride ion is considered one of the most common culprits on the corrosion of steels in concrete. This study is effect of cement hydraulic degree on the chloride binding in hardened cement pastes. With increasing the cement hydration, cement products such as CSH and Ca(OH)2 were increased, and the part of added chloride were binded with them. With respect to A type, in first, the additional contents of chloride of 27.08mM/L in pore solution were reduced as 4.3mM/L at 3 days, 4.0mM/L at 7 days, 3.6mM/L at 28 days.
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