Time Dependent Chloride Diffusion Coefficient in Concrete in Cold Regions

被引：0

作者：

Chen, Sijia ^{[1
]}

Song, Xiaobing ^{[1
]}

Liu, Xila ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Dept Civil Engn, Shanghai 200240, Peoples R China

来源：

PROCEEDINGS OF THE 2015 INTERNATIONAL CONFERENCE ON MATERIALS, ENVIRONMENTAL AND BIOLOGICAL ENGINEERING | 2015年 / 10卷

关键词：

Chloride ingress model; diffusion; freeze-thaw cycles; time dependent diffusion coefficient; FREEZE-THAW; FLY-ASH; PENETRATION; RESISTANCE; SALT;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Chloride and freeze-thaw cycles are two main factors which cause deterioration of reinforced concrete (RC) structure in the cold regions. In this paper, the process of chloride ingress into concrete exposed to freeze-thaw cycles is experimentally researched. From the experimental results, it appears that freeze-thaw cycles make the effective diffusion coefficient become bigger. Based on the experimental data, the concept of developing coefficient was defined to obtain the evolution equation of effective diffusion coefficient. Together with considering the effect of aging of concrete on effective diffusion coefficient, the time dependent diffusion coefficient of concrete in cold regions was obtained.

引用

页码：654 / 659

页数：6

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