Analysis of chloride ion penetration for marine concrete structure with cyclic humidity environment SCOPUS KCI

Title
Analysis of chloride ion penetration for marine concrete structure with cyclic humidity environment
Author(s)
Han, S.-H.
Publication Year
2004
Abstract
The diffusion model, which considers diffusion and sorption, is proposed. The FEM program developed on the basis of the diffusion model 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, 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.
ISSN
1598-141X
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5348
DOI
10.4217/OPR.2004.26.1.043
Bibliographic Citation
Ocean and Polar Research, v.26, no.1, pp.43 - 50, 2004
Publisher
Korea Ocean Research and Development Institute
Subject
chloride; concrete structure; diffusion; marine environment; sorption
Keywords
Chloride; Cyclic humidity; Diffusion; FEM; Sorption
Type
Article
Language
Korean
Document Type
Article
Publisher
Korea Ocean Research and Development Institute
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