해양 콘크리트 구조물의 염소이온 확산 모델링

Title
해양 콘크리트 구조물의 염소이온 확산 모델링
Alternative Title
ANALYSIS OF CHLORIDE ION PENETRATION IN MARINE CONCRETE STRUCTURE
Author(s)
한상훈; 박우선
KIOST Author(s)
Park, Woo Sun(박우선)
Publication Year
2004-03-01
Abstract
This paper proposes a new diffusion coefficient which considers the variation of chloride binding and evaporable water in concrete. A FEM (Finite Element Method) program developed on the basis of the new diffusion coefficient provides an estimation of chloride concentration with concrete depth and aging, and predicted chloride concentrations are compared with experimental values.The apparent 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 apparent diffusion coefficient to intrinsic diffusion coefficient. The FEM program using the apparent diffusion coefficient estimates experimental chloride concentrations in a little error range. On the contrary, chloride penetration analysis using intrinsic diffusion coefficient overestimates the penetration depth of chloride ion. Therefore, it is recommended to use the apparent diffusion coefficient for predicting the initiation age of chloride-induced corrosion
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/31982
Bibliographic Citation
Asian and Pacific Coasts 2003, pp.158 - 159, 2004
Publisher
World Scientific
Type
Conference
Language
English
Publisher
World Scientific
Related Researcher
Research Interests

Development of harbor structures,Analysis of harbor structures,Design of harbor structures,항만구조물개발,항만구조물해석,항만구조물설계

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