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Application of Infrared and Radar Technology in Nondestructive Testing of External Wall Insulation Systems

WANG Hailong¹’²’³,WANG Yue¹’²’³,WANG Wanjin ¹’²’³, XIANG Chuang ¹’²’³

About the author:

1.China Academy of Building Research, Beijing 100013,China;2. National Research Center for Building Engineering Technology, Beijing 100013,China; 3. Jianyan Building Materials Co.,Ltd.,Beijing 100013,China

Abstract:

This paper analyzes the principles of high-definition infrared scanning technology and high-frequency radar technology for non-destructive testing of leakage in building facades, and applying the combination of the two technologies in non-destructive testing of leakage in building facades. The high-definition infrared technology is used to scan the whole building facade in high-definition, and the high-frequency radar is used to scan and visualize the leakage parts in slices. The study shows that the infrared technology can be used to determine the parts of the building wall where water seepage occurs, and the high-frequency radar technology can detect the bonding status of the exterior insulation system while determining the seepage paths and seepage diffusion areas of the water seepage in the system.