In this research, the experimental works were conducted to study the quality control for the compressive strength and pavement thickness of Hwangtoh concrete(21MPa) using the ultrasonic pulse velocity method and the impact echo method of nondestructive test methods based on the stress waves.

• 홍성욱(한밭대학교 도시건축재생기술연구소 연구교수, 공학박사) | Hong, Seong Uk
• 김승훈(한밭대학교 건축공학과 교수, 공학박사) | Kim, Seung Hun 교신저자