한국콘크리트학회:학술대회논문집 (Proceedings of the Korea Concrete Institute Conference)
- 한국콘크리트학회 1997년도 가을 학술발표회 논문집
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- Pages.269-274
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- 1997
콘크리트 구조물의 염분 침투해석
The Analysis of Chloride Ions Intrusion into Concrete Structure
초록
Recently, premature reinforcement corrosion in concrete structures exposed to chloride containing environments has an important problem. This is due to an increasing use of marine aggregate of chloride containing admixture a the mixing stage and due to an increase of concrete construction in marine environments. In this study, the behavior of chloride ions introduced into concrete from concrete surface by a marine environment was modeled. The physicochemcial processes including the diffusion of chloride ion in aqueous phase of pores, the adsorption and desorption of chloride ions to and from the surface of solid phase of concrete, and the chemical reaction of chloride ion with solid phase were analyzed by using the finite element method. The results of this study may be used to predict the onset of reinforcement corrosion, and identify the maximum limit of chloride ions contained in admixtures.
키워드