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Title |
Relative Corrosion Environment Conditions of Steel Box Members Examined by Corrosion Current Measurement
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Authors |
진용희(Yong-Hee Jin) ; 하민균(Min-Gyun Ha) ; 정영수(Young-Soo Jeong) ; 안진희(Jin-Hee Ahn) |
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DOI |
https://doi.org/10.11112/jksmi.2020.24.6.171 |
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Keywords |
부식환경; 강박스 부재; 부식전류; 젖음시간; 부식환경 모니터링 센서 Corrosion environment; Steel box member; Corrosion current; Time of Wetness; Atmospheric corrosion monitoring sensor |
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Abstract |
In this study, a local corrosion environment monitoring was conducted using steel box specimen fabricated to be the same as actual steel bridge members. The steel box specimen that obtained the same corrosion environment as a steel bridge was classified into the upper plate, bottom plate and web plate. Atmospheric corrosion monitoring sensors(ACM sensors) were installed in each corrosion monitoring member of a steel box specimen to measure the corrosion current and examine time of wetness for each monitoring member. The time of wetness and accumulated corrosion current of each monitoring member were calculated from the measured corrosion current using ACM sensors. The corrosion environment that appeared for each of the steel box members was evaluated from monitoring corrosion environment data as the corrosion current, time of wetness, mean corrosion depth of each monitoring member. Additionally, the atmospheric corrosion environment monitoring was also conducted to compare with the local corrosion environment of steel box members. From these local corrosion environment monitoring for the steel box specimen, the relationship between the relative corrosion environment and mean corrosion depth of each steel box member was examined.
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