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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2004.4
- 수록면
- 30 - 37 (8page)
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초록· 키워드
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In order to understand the effect of corrosion on the bond strength in RC flexural members, reinforcing bars are corroded
before and after concrete casting using current-induced accelerated technique. In pre-corroded reinforcing bars, the average
bond strength tended to increase until 3 % of actual corrosion level and then started to decrease after 3 ％ of corrosion level.
Below 3 ％ of actual corrosion level, the corrosion residuals on the surface of corroded steel bar caused friction stress to
increase between steel bar and concrete and those residuals contribute to increase bond strength. In post-corroded reinforcing
bars, bond strength decreased dramatically due to the formation of corrosion crack around steel bar. The experimental results
showed that the pre- and post-corroded specimens failed in ductile and brittle manner, respectively. The different behavior of
these two flexural members is due to the recovery of bonding between concrete and steel bar during casting and hardening for
pre-corroded specimens and the formation of expansion stress leading to concrete cracking for post-corroded specimens.
before and after concrete casting using current-induced accelerated technique. In pre-corroded reinforcing bars, the average
bond strength tended to increase until 3 % of actual corrosion level and then started to decrease after 3 ％ of corrosion level.
Below 3 ％ of actual corrosion level, the corrosion residuals on the surface of corroded steel bar caused friction stress to
increase between steel bar and concrete and those residuals contribute to increase bond strength. In post-corroded reinforcing
bars, bond strength decreased dramatically due to the formation of corrosion crack around steel bar. The experimental results
showed that the pre- and post-corroded specimens failed in ductile and brittle manner, respectively. The different behavior of
these two flexural members is due to the recovery of bonding between concrete and steel bar during casting and hardening for
pre-corroded specimens and the formation of expansion stress leading to concrete cracking for post-corroded specimens.
목차
Abstract
1.서론
2.실험
3.실험결과
4.실험결과의 분석 및 고찰
5.결론
감사의 글
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