Reinforced concrete structures are deteriorated in a few decades due to various causes, such as carbonation. Therefore it is important to evaluate the accurate carbonation depth in order to secure the durability of the structure. In this paper, carbonation depth by drilling excavation and splitting core sample are compared. Also, the procedure for estimating the appropriate repair zone is proposed, with the result of carbonation depth and steel bar detection.

• 노태길(한국시설안전공단 도시철도실 사원) | Noh, Tae-Kil
• 신용석(한국시설안전공단 도시철도실 실장) | Shin, Yong-Seok
• 윤태국(한국시설안전공단 시설안전연구소 부장) | Yoon, Tae-Gook
• 이태종(한국시설안전공단 도시철도실 과장) | Lee, Tae-Jong
• 추진호(한국시설안전공단 도시철도실 과장) | Choo, Jin-Ho 교신저자