| Early Debonding Detection of Rebar-Concrete Interface due to External Loading Utilizing AC Impedance Spectroscopy |
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| 作者姓名： | 吴立朋 YANG Haitao DONG Xian |
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| 作者单位： | 1. School of Civil Engineering, Shijiazhuang Tiedao University;2. State Key Laboratory of Building Safety and Built Environment;3. National Engineering Research Center of Building Technology |
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| 基金项目： | the National Natural Science Foundation of China (No.51808357)； |
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| 摘 要： | A novel method for detecting early damage at the steel-concrete interface due to external loading based on AC impedance spectroscopy technology was proposed. Firstly, alkali pretreatment was introduced to ensure the accuracy and repeatability of the AC impedance test. Secondly, the AC impedance spectroscopy between the steel bar and concrete surface of different bonding positions was tested, and then the physical quantities reflecting the bonding damage condition were obtained by equivalent circ...
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