Thermal damage in concrete reduce the stress resistance to external loading and then increase the risk of structural failure. This presentation is aimed to apply a nonlinear ultrasonic NDT on concrete thermally damaged. In addition, SEM images was investigated to identify the thermal damage and the feasibility of the nonlinear ultrasonic NDT.

• 김재홍(울산과학기술대학교 도시환경공학부 조교수) | Kim, Jae Hong Corresponding Author
• 임홍재(한국과학기술원 건설및환경공학과 박사과정) | Yim, Hong Jae
• 박선종(한국과학기술원 건설및환경공학과 박사과정) | Park, Sun-Jong