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Chloride ion ingress distribution within an alternate wetting-drying marine environment area

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Abstract

Concrete structures in an alternate wetting-drying area often suffer from severe chloride ion ingress more than those in other areas. Field tests of marine structures were conducted, and chloride concentration is found to reach a maximum value at a certain elevation. The surface concentration and diffusion coefficient of chloride ions at different elevations exhibit Gaussian unimodal curve distributions. Using the chloride ion unsaturated permeability model, the distribution regularity mechanism is analyzed. Finally, an improved indoor accelerated simulation experiment is proposed to simulate the rules governing chloride ion ingress into concrete structures in an alternate wetting-drying area.

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Authors and Affiliations

  1. Department of Civil Engineering, Zhejiang University, Hangzhou, 310058, China

    Chen Xu, ZhiYuan Li, WeiLiang Jin, Yi Zhang & ChangJian Yao

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  1. Chen Xu
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  2. ZhiYuan Li
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  3. WeiLiang Jin
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  4. Yi Zhang
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  5. ChangJian Yao
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Correspondence to WeiLiang Jin.

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Xu, C., Li, Z., Jin, W. et al. Chloride ion ingress distribution within an alternate wetting-drying marine environment area. Sci. China Technol. Sci. 55, 970–976 (2012). https://doi.org/10.1007/s11431-011-4733-1

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  • DOI: https://doi.org/10.1007/s11431-011-4733-1

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