메뉴 건너뛰기
소속 기관 / 학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
고객센터 ENG
주제분류

논문 기본 정보

저자정보
출처
EDP Sciences MATEC Web of Conferences 409
오류 신고하기
표지

검색

    초록·키워드

    Corrosion in ordinary steel-reinforced and prestressed concrete structures is a global challenge, particularly when exposed to chlorides from de-icing salts or seawater. While impressed current cathodic protection (ICCP) effectively mitigates corrosion in reinforced concrete structures, its application to ordinary reinforcement near post-tensioned tendons (especially damaged tendons) raises concerns about possible hydrogen embrittlement, which occurs when atomic hydrogen diffuses into high-strength steel, potentially compromising its ductility and load-bearing capacity. This risk necessitates continuous and careful monitoring of such ICCP systems during operation. The present study analyses the electrochemical conditions in zones containing post-tensioned tendons when ICCP is employed on the ordinary reinforcement to assess the possible impact on post-tensioned tendons. Several years of monitoring data from two Norwegian bridges were investigated, focusing on variations in applied voltage and current density, anode placement, polarization behaviour, and the effects on the prestressed tendons. Factors such as temperature fluctuations, humidity, and concrete resistivity, which influence the system, are discussed.

    본문·목차

    최근 본 자료 전체보기