GGBFS 콘크리트에 매립된 Notch를 가진 FRP Hybrid Bar의 부식저항성 평가

다국어 초록 (Multilingual Abstract)

Concrete structure is a construction material with durability and cost-benefit, however the corrosion in embedded steel causes a critical problem in structural safety. This paper presents an evaluation of chloride resistance and pull-off performance with various corrosion level. For the work, OPC(Ordinary Portland Cement) concrete and GGBFS(Ground Granulated Blast Furnace Slag) concrete are prepared with normal steel. Artificially notch induced FRP Hybrid Bar is also prepared and embedded in OPC concrete and accelerated corrosion test is performed. Through the test, FRP Hybrid Bar with notch is evaluated to have insignificant effect on pull-off capacity when corroded steel shows only 21% level of pull-off capacity. Furthermore GGBFS concrete with normal steel shows over 70% level of pull-off capacity due to reduced corrosion currency.

목차 (Table of Contents)

• 1. 서 론
• 2. 촉진부식된 FRP Hybrid Bar의 부착성능평가시험
• 2.1 배합특성
• 2.2 FRP Hybrid Bar 특성
• 2.3 시편 제작
• 2.4 촉진부식실험 개요
• 3. 부식된 보강재의 부착력 특성 평가
• 3.1 콘크리트의 압축강도
• 3.2 부식수준 설정
• 3.3 부식전후 콘크리트 부재의 부착 특성
• 3.3 OPC 및 GGBFS 콘크리트의 부식특성 비교
• 4. 결 론
• 감사의 글
• References