항만 콘크리트 구조물의 현장환경 변화에 따른 염소이온 침투해석

Title
항만 콘크리트 구조물의 현장환경 변화에 따른 염소이온 침투해석
Alternative Title
Analysis of Chloride Ion Penetration for Harbor Concrete Structure with In-situation Environment
Author(s)
한상훈; 장인성
KIOST Author(s)
Jang, In Sung(장인성)
Publication Year
2004-11-06
Abstract
In order to estimate the chloride ion penetration, the model, which considers diffusion and sorption, is proposed on the basis of Finite Element Method (FEM). The FEM program provides the estimation of chloride concentration according to cyclic humidity and sorption. After the humidity diffusion analysis is carried out, the chloride ion diffusion and sorption analysis are conducted on the basis of the preestimated humidity data in each element. Each element has different analysis variables at different ages and locations. At early ages and constant outer humidity, the difference between inner and outer relative humidity causes the chloride ion penetration by sorption. As the humidity diffusion reduces the difference with age, the effect of sorption on the chloride ion penetration decreases. By the way, the cyclic humidity increases the effect of sorption on the chloride ion penetration at early ages, and the quantity of chloride ion around steel at later ages. Therefore, the in-situ analysis of chloride ion penetration for marine concrete structures must be performed considering the cyclic humidity condition and the long term sorption.
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/41228
Bibliographic Citation
한국콘크리트학회 가을 학술발표회, pp.225 - 228, 2004
Publisher
한국콘크리트학회
Type
Conference
Language
Korean
Publisher
한국콘크리트학회
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