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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2023.12
- 수록면
- 269 - 278 (10page)
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초록· 키워드
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In this study, it was utilized Electrochemical Impedance Spectroscopy(EIS) to evaluate the deterioration of concrete caused by the propagation of cracks due to chloride-induced steel corrosion at different corrosion stages. Concrete specimens with a water-to-cement ratio of 0.5 were immersed in a NaCl solution to simulate four corrosion stages(0C, 650C, 1300C, and 2600C) through accelerated corrosion experiments on steel reinforcement. EIS analysis revealed key parameters like charge solution resistance(RS), transfer resistance(RC) and double layer capacitance(Cdl). RS decreased significantly according to occurring concrete cracks. RC value decreased sharply at the onset of corrosion, while Cdl vlaue gradually increased with higher impressed current, reflecting oxygen diffusion rates and crack development. These findings provide insights for signal interpretation methods to monitor concrete degradation due to steel corrosion at various stages. And based on these results, this study had proposed criteria for evaluating steel corrosion and concrete damage conditions.
목차
Abstract
1. 서론
2. 실험방법
3. 실험결과 및 고찰
4. 결론
REFERENCES
참고문헌 (23)
참고문헌 신청
Nishikata A., Zhu Q., & Tada E. (2014). Long-term monitoring of atmospheric corrosion at weathering steel bridges by an electrochemical impedance method, Corrosion Science, 87, 80-88.
ASTM Standard C876-91(1994). Standard Test Method for Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete, Annual Book of ASTM Standards, 03.02,432.
Building Research Establishment(2001). Corrosion of steel in concrete : In Investigation and assessment Digest 444, Part2, BRE, London, UK.
Chi, H.S., Han, B.K., Cheong, H.M., Ahn, T.S., & Ryu, J.H.(2005). Repair of Sorae Highway Bridge Damaged by Chloride Attack in Marine Environment, Magazine of the Korea Concrete Institute, 17(2), 60-64.
Denny A. J.(1996). Principles and Prevention of Corrosion Second Edition : Prentice-Hall, Inc., New Jersey, USA, 31-34.
ASTM Standard C876-91(1994). Standard Test Method for Half-Cell Potentials of Uncoated Reinforcing Steel in Concrete, Annual Book of ASTM Standards, 03.02,432.
Building Research Establishment(2001). Corrosion of steel in concrete : In Investigation and assessment Digest 444, Part2, BRE, London, UK.
Chi, H.S., Han, B.K., Cheong, H.M., Ahn, T.S., & Ryu, J.H.(2005). Repair of Sorae Highway Bridge Damaged by Chloride Attack in Marine Environment, Magazine of the Korea Concrete Institute, 17(2), 60-64.
Denny A. J.(1996). Principles and Prevention of Corrosion Second Edition : Prentice-Hall, Inc., New Jersey, USA, 31-34.
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