Abstract：
This paper introduces the present status of non-destructive testing method of concrete, and summarizes the related results. The characteristics of different testing methods are analyzed and the defects of the present researches are pointed out. The results show that traditional NDT methods such as ray inspection and Ultrasonic detection are simple and convenient, while their sensitivity is low. The acoustic emission method has high sensitivity but it is difficult to detect static defects. The acoustic emission method has the characteristics of high sensitivity, while it is difficult to find static defects. The Piezoelectric impedance method can detect the micro damage of concrete. The visual image detection method is easy to show the development of cracks. Each method has its own scope of application. Based on the above analysis results and combined with the characteristics of concrete material, the key problem in the research of NDT methods of concrete damage is discussed.
HUANG Yi-jie1,HE Xu-jia1,WANG Lin-lin1 et al. Research Status of Non-destructive Detection Method in Concrete Damage and Cracking[J]. Architecture Technology, 2018, 49(1): 54-.
