Insights into the corrosion inhibition of steel rebar in chloride-contaminated synthetic concrete pore solutions by a new hydrazone새로운 히드라존에 의한 염화물 오염 합성 콘크리트 공극 솔루션에서 철근의 부식 억제에 대한 통찰력
- Other Titles
- 새로운 히드라존에 의한 염화물 오염 합성 콘크리트 공극 솔루션에서 철근의 부식 억제에 대한 통찰력
- Authors
- Hassane,Lgaz; ㆍLee, Han-seung
- Issue Date
- Apr-2022
- Publisher
- 한국건축시공학회
- Keywords
- 탄소강; 콘크리트; EIS; XPS; 알칼리부식; carbon steel; concrete; EIS; XPS; alkaline corrosion
- Citation
- 한국건축시공학회 2022 봄학술발표대회 논문집, v.22, no.1, pp.101 - 102
- Indexed
- OTHER
- Journal Title
- 한국건축시공학회 2022 봄학술발표대회 논문집
- Volume
- 22
- Number
- 1
- Start Page
- 101
- End Page
- 102
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/114029
- Abstract
- A new hydrazone derivatives namely (E)-N'-(4-(dimethylamino)benzylidene)-2-(5-methoxy-2-methyl-1H-indol-3-yl)acetohydrazide (HIND) has been confirmed for mitigating the corrosion of the steel rebar exposed to chloride contaminated synthetic concrete pore solution (ClSCPS). The mitigation of corrosion properties has been characterized by weight loss and electrochemical methods (Electrochemical impedance, Potentiodynamic polarization studies) as well as surface observations. The presence of HIND in the ClSCPS decreased the corrosion of steel rebar by adsorption of HIND molecules on the surface of the steel rebar. The optimal HIND concentration was 0.5 mmol/L, corresponding to an inhibition efficiency of 88.4%. The use of HIND enables the corrosion process to have a higher energy barrier. X-ray photo electron spectroscopy (XPS), atomic force microscopy (AFM), scanning electron microscopyenergy- dispersive spectroscopy (SEM-EDS), and X-ray diffraction (XRD) spectroscopy interpretations confirmed that HIND mitigates the corrosion attack on the surface steel rebar.
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