해양콘크리트 구조물의 염소이온 프로파일을 예측하기 위한 수치 모델링
- 해양콘크리트 구조물의 염소이온 프로파일을 예측하기 위한 수치 모델링
- Numerical model estimating chloride penetration-profile in marine concrete structure
- 한상훈; 박우선
- KIOST Author(s)
- Park, Woo Sun(박우선)
- New chloride diffusion coefficient is proposed in order to estimate the effect of chloride binding and evaporable water on chloride ion penetration in marine concrete structure. A finite element method program developed on the basis of the new diffusion coefficient provides an estimation of chloride concentration according to concrete depth, external and internal conditions, and the predicted chloride concentrations are compared with experimental values.The new diffusion coefficient, which is presented as functions of chloride binding, evaporable water and intrinsic diffusion coefficient, varies greatly according to water-cement ratio. But, curing temperature does not have a significant influence on the ratio of modified diffusion coefficient to intrinsic diffusion coefficient. The FEM program using the modified diffusion coefficient estimates experimental chloride concentrations in a little error range. The numerical analysis for internal and external conditions proposes that the most effective way to reduce chloride ion penetration is to decrease water-cement ratio.
- Journal of Ocean Science and Technology, v.1, no.1, pp.39 - 48, 2004
- Related Researcher
Development of harbor structures,Analysis of harbor structures,Design of harbor structures,항만구조물개발,항만구조물해석,항만구조물설계
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