In this study, the grouting condition and the corrosion of prestressing steel in old PSCI bridges were investigated. There are many places where the construction quality of the grout is poor to prevent the corrosion of prestressing steel. Partial surface corrosion was found regardless of the construction condition of the grout.

Abstract
 1. 서 론
 2. 고속도로 PSCI 교량의 긴장재 부식 방지 현황
 3. 장기 공용된 고속도로 교량의 긴장재 상태

• 박창호(한국도로공사 도로교통연구원) | Park, Chang Ho
• 최진웅(한국도로공사 도로교통연구원) | Choi, Jin Woong
• 김기환(한국도로공사 도로교통연구원) | Kim, Ki Whan
• 이일용(한국도로공사 구조물처) | Lee, Il Yong