The degradation of concrete exposed to high temperature was evaluated by applying ultrasonic pulse velocity evaluation method which is one of the nondestructive tests of concrete. As a result, it is difficult to distinguish compressive strength of concrete and estimate residual compressive strength of concrete. However, it was confirmed that the higher the heating temperature, the lower the compressive strength and ultrasonic velocity of the concrete.

• 황의철(충남대학교 건축공학과 박사과정) | Hwang, Eui-Chul
• 김규용(충남대학교 건축공학과 교수, 공학박사) | Kim, Gyu-Yong Corresponding author
• 윤민호(충남대학교 건축공학과 박사과정) | Yoon, Min-Ho
• 서원우(충남대학교 건축공학과 석사과정) | Seo, Won-Woo
• 남정수(충남대학교 건축공학과 조교수, 공학박사) | Nam, Jeong-Soo