钢筋混凝土结构中钢筋锈蚀情况的无损检测法——探地雷达检测法应用研究

Non-Destructive Detection Method of Steel Bar Corrosion in Reinforced Concrete Structures——Ground Penetrating Radar Detection Method

传统的钢筋锈蚀检测方法在钢筋混凝土结构中存在局限,无法测得锈蚀的累积发展情况。探地雷达被认为是一种有潜力的锈蚀检测技术。论文根据混凝土结构的实际使用状态,设置不同实验工况,对比分析钢筋锈蚀过程中各个变量对雷达信号的改变规律,对探地雷达在钢筋混凝土结构锈蚀检测中的机理进行研究。研究发现,不同的锈蚀劣化状态对雷达信号的影响不同。

Traditional corrosion detection methods have limitations in reinforced concrete structures,and cannot measure the cumulative development of corrosion.Ground Penetrating Radar(GPR)is considered as a promising corrosion detection technology.In this study,different experimental conditions were set according to the actual use state of concrete structures,and the changes in radar signals caused by various variables in the process of steel bar corrosion were compared and analyzed.The mechanism of GPR in corrosion detection in reinforced concrete structures was studied.The research found that different corrosion deterioration states have different impacts on the radar signals.