| Bond Strength Degradation of Corrosive Reinforced Lightweight Concrete |
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| 作者姓名： | 陈月顺 |
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| 作者单位： | [1]School of Civil Engineering, Wuhan University, Wuhan 430070, China [2]Department of Civil Engineering, Hubei University of Technology, Wuhan 430068, China |
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| 摘 要： | The influence of reinforced bar corrosion on the bond degradation in lightweight concrete was studied. Accelerated constant current corrosion tests were performed on lightweight reinforced concrete samples, and the influential factors, such as protective layer thickness, reinforced bar diameter and corrosive level were investigated. The constant current step method was used to measure the electric resistance of the concrete protective cover, which was used to characterize the corrosion level of the rebar. Experimental results indicated that the corrosive resistance increased with increasing the cover dimension and decreasing the reinforced bar diameter, and the rate of decrease in the specimen impedance after cracking depended on the cover dimension. A new medium was offered for the further research on the performance degradation of corrosion lightweight concrete.
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| 关 键 词： | 轻质混凝土 增强混凝土 加速腐蚀 键合强度 |
| 收稿时间： | 12 October 2005 |
| 修稿时间： | 2005-10-122006-09-10 |
Bond strength degradation of corrosive reinforced lightweight concrete |
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| Chen Yueshun,Lu Yiyan,Li Houxiang,Zeng Sanhai.Bond Strength Degradation of Corrosive Reinforced Lightweight Concrete[J].Journal of Wuhan University of Technology. Materials Science Edition,2007,22(2):354-357. |
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| Authors: | Chen Yueshun Lu Yiyan Li Houxiang Zeng Sanhai |
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| Affiliation: | 1. School of Civil Engineering, Wuhan University, Wuhan 430070, China; 2. Department of Civil Engineering, Hubei University of Technology, Wuhan 430068, China |
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| Abstract: | The influence of reinforced bar corrosion on the bond degradation in lightweight concrete was studied. Accelerated constant current corrosion tests were performed on lightweight reinforced concrete samples, and the influential factors, such as protective layer thickness, reinforced bar diameter and corrosive level were investigated. The constant current step method was used to measure the electric resistance of the concrete protective cover, which was used to characterize the corrosion level of the rebar. Experimental results indicated that the corrosive resistance increased with increasing the cover dimension and decreasing the reinforced bar diameter, and the rate of decrease in the specimen impedance after cracking depended on the cover dimension. A new medium was offered for the further research on the performance degradation of corrosion lightweight concrete. |
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| Keywords: | Faraday law lightweight concrete accelerated corrosion constant current step accelerated corrosion |
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