Acknowledgement
This research was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2015R1A5A1037548).
Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)
- 2022.04a
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- Pages.43-44
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- 2022
Role of chloride ions with Zwitterions and phosphate groups on the improvement of the passive film in alkaline environment
알칼리성 환경에서 부동태 피막 개선에 대한 양쪽성 이온 및 인산염 그룹을 갖는 염화물 이온의 역할
- Tran, Duc Thanh (Hanyang University, Department of Smart City Engineering) ;
- Lee, Han-seung (Hanyang University, Department of Architectural Engineering)
- Published : 2022.04.20
Abstract
In this study, the optimum amount of chloride ions is used to collaborate with hybrid corrosion inhibitor for carbon steel rebar treatment in simulated pore concrete (SCP) solution is discovered. The corrosion inhibition performance of hybrid inhibitors is carried on by open circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PP). The highest corrosion inhibition resistance is found in case of LP-C2 after 240 h exposure. Surface studies including scanning electron microscopy (SEM), and atomic force microscopy (AFM) were used to figure out the surface morphology of the steel rebar treated with hybrid inhibitors in order to collaborate well with electrochemical studies. Anodic type inhibition action was confirmed by potentiodynamic polarization study.