Post-tension system was applied most PSC bridges in Korea. Also Grouting was applied to prevent corrosion of the strand. For this reason, it is difficult to inspection the condition of the strand after completion. Therefore, in this paper, the Nondestructive testings(NDTs) developed at domestic and foreign was investigated. In addition, the current level and limit of the NDTs were analyzed considering the existing bridge environment. As a result of the study, Strand condition inspection using NDTs have been analyzed to have technical and environmental limitations.

Abstract
 1. 서 론
 2. PSC 교량 긴장재 조사 기법과 한계
 4. 결론
 참고문헌

• 최진웅(한국도로공사 도로교통연구원 구조물연구실) | Choi, Jinwoong
• 박창호(한국도로공사 도로교통연구원 구조물연구실) | Park, Chang Ho
• 김기환(한국도로공사 도로교통연구원 구조물연구실) | Kim, Ki Hwan