The field application of air-coupled impact echo (IE) is evaluated in this study, where an actual in-service concrete bridge deck is tested. An IE test equipment set is deployed as part of an effort to develop new rapid measurement method. The IE data are presented as two-dimensional frequency maps. For verification of the location of shallow delamination damage, eight drilled core samples were extracted from the test area. The results show reasonably good agreement with the drilled cores.

• 유장렬(인천대학교 안전공학과 석사과정) | Yoo, Jang Ryeol
• 이연수(인천대학교 안전공학과 박사과정) | Lee, Yeon Soo
• 오태근(인천대학교 안전공학과 교수, 공학박사) | Oh, Tae Keun 교신저자