Development on evaluation method of existing concrete deterioration subjected to scaling under chloride environment

本研究旨在对老化旧混凝土表面结垢后的劣化进行评价。为此，设计了一种钢筋混凝土结构劣化面的定量评价方法。试验结果表明，结垢劣化过程取决于钢筋的存在和钢筋面积的大小。此外，通过对RC构件的尺度测量，认识到平均尺度深度和最大尺度深度彼此成比例。此外，还可以通过测量平均结垢深度和最大结垢深度来预测结垢劣化过程。

This study aimed that the evaluation of the deteriorated existing concrete surface subjected to scaling was developed. Therefore, a quantitative evaluation method for deterioration surface of RC structures was devised. The experimental results revealed that a deterioration process of scaling was depended by existence of a reinforcing bar and an area of reinforcement. Further, it was recognized that an average scaling depth and a maximum scaling depth were in proportion to each other by the measurement of scaling for RC members. In addition, it was possible to predict deterioration process of scaling by measuring the average scaling depth and the maximum scaling depth.