Experimental test of corrosion-induced concrete cover cracking pattern
发布时间：2024-08-09
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- 所属单位：
- 土木工程学院
- 发表刊物：
- Advanced Materials Research
- 关键字：
- 中文关键字：混凝土保护层；腐蚀致开裂；开裂模式；电化学加速，英文关键字：Concrete Cover；Corrosion Induced Cracking；Cracking
- 摘要：
- The study of cover cracking pattern can provide scientific basis for the durability assessment and maintanence of concrete structures. In this paper, corrosion induced cover cracking pattern was investigated by accelerated corrosion test. The cover thickness c, bar diameter d and bar spacing s were considered in the test. Test results showed that the cracking pattern of cover concrete mainly included four typies, that is longitudinal cracks including wedge and vertical, parallel cracks, spalling and delamination. When the bar spacing was small enough, the delamination of cover concrete occurred which had nothing to do with the ratio c/d. When c/d≤1, the corrosion of side bar mainly induced the vertical cracks and the corrosion of corner bar induced both vertical and wedge cracks. While c/d>1, the corrosion of corner bar mainly induced wedge cracks.
- 备注：
- 牛荻涛
- 合写作者：
- 宋华
- 第一作者：
- 牛荻涛
- 论文类型：
- 期刊论文
- 卷号：
- 卷：374-377
- 期号：
- 期：
- 页面范围：
- 页：1969-1973
- 是否译文：
- 否
- 发表时间：
- 2012-08-01