인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.