Concrete has been recognized as a material which is resistant to the high temperature, but chemicophysical property of concrete is changed by the high temperature. So, mechanical properties of concrete may be reduced. Therefore, concrete is evaluated mechanical properties for safety inspection. However, research of ultrasonic pulse method is not much. Therefore, the purpose of this study is to Non-Destructive Test of 30, 70, 110MPa concrete exposed high temperature using ultrasonic pulse velocity.

• 황의철(충남대학교 건축공학과 박사과정) | Hwang, Eui-Chul
• 김규용(충남대학교 건축공학과 교수, 공학박사) | Kim, Gyu-Yong 교신저자
• 윤민호(충남대학교 건축공학과 박사과정) | Yoon, Min-Ho
• 서원우(충남대학교 건축공학과 석사과정) | Seo, Won-Woo
• 백재욱(충남대학교 건축공학과 석사과정) | Baek, Jae-Uk