开裂
腐蚀
材料科学
混凝土保护层
钢筋混凝土
复合材料
钢筋
巴(单位)
圆柱
结构工程
冶金
工程类
地质学
机械工程
海洋学
作者
Xiguang Liu,Ziwei Yan,Dongjing Wang,Ran Zhao,Ditao Niu,Yan Wang
标识
DOI:10.1016/j.jobe.2022.105610
摘要
This paper presents an experimental and theoretical study on the corrosion cracking behavior of reinforced concrete under freeze-thaw cycles. Accelerated corrosion tests were carried out on reinforced concrete specimens subjected to freeze-thaw cycles. The test results of Digital Image Correlation (DIC) showed that the cracking positions on the concrete surface were randomly distributed. The critical corrosion ratio of reinforcing bars decreased with increasing freeze-thaw cycles. The reinforcing bar critical corrosion ratio at cover cracking under freeze-thaw environment was established with the thick-walled double cylinder theory, and was in acceptable with experimental results.
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