NUMERICAL DETERMINATION OF THE CHLORIDE DIFFUSION COEFFICIENT IN CRACKS AND CRACKED CONCRETE

被引：0

作者：

Wang, Licheng ^{[1
]}

Ueda, Tamon ^{[2
]}

机构：

[1] Dalian Univ Technol, State Key Lab Coastal & Offshore Engn, Dalian, Peoples R China

[2] Hokkaido Univ, Fac Engn, Sapporo, Hokkaido 0608628, Japan

来源：

ADVANCES IN CONCRETE STRUCTURAL DURABILITY: PROCEEDINGS OF THE 2ND INTERNATIONAL CONFERENCE ON DURABILITY OF CONCRETE STRUCTURES ICDCS2010 | 2010年

关键词：

chloride diffusion; crack; concrete; numerical simulation; LOCAL DIFFUSION;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Cracking is usually present in concrete as a result of the mechanical and environmental actions or often of their combination. It has been realized that cracks can significantly accelerate the ingress of chlorides into concrete since they provide additional flow channels and allow more chlorides to penetrate. The objective of this paper is to quantify the diffusion coefficient of chloride through cracks by numerical method with help of the available experimental results from literatures. The investigated crack widths range from 20 to 600 mu m covering the data in test study. The dependence of the diffusion coefficient of chloride along crack is numerically determined by the trial and error method, which is applied to samples with one parallel or tapered (V-shaped) crack to confirm the reliability.

引用

页码：303 / 309

页数：7

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