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- Publisher Website: 10.1061/JMCEE7.MTENG-16037
- Scopus: eid_2-s2.0-85166388550
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Article: Effect of Stress on the Critical Chloride Content of Steel Bar in Simulated Concrete Pore Solution
Title | Effect of Stress on the Critical Chloride Content of Steel Bar in Simulated Concrete Pore Solution |
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Authors | |
Keywords | Concrete pore solution Critical chloride content Electrochemical techniques Steel corrosion Stress |
Issue Date | 1-Oct-2023 |
Publisher | American Society of Civil Engineers |
Citation | Journal of Materials in Civil Engineering, 2023, v. 35, n. 10 How to Cite? |
Abstract | This work reveals influence of the stress state of steel bars on the critical chloride content for depassivation in a simulated concrete pore solution (SCPS). The passivation behavior of steel in chloride-free SCPS and depassivation behavior in SCPS with incremental addition of chloride were studied by electrochemical techniques including electrochemical impedance spectroscopy, Mott-Shottky test, cyclic voltammetry, and others. Results demonstrated that stress enhanced the redox activity in highly alkaline SCPS, where enhancement by tension was more pronounced than compression. Additionally, stress increased the donor density and dielectric properties of the constant-phase element of the passive film. The critical chloride content of steels can be considerably lowered by 80% under stress. |
Persistent Identifier | http://hdl.handle.net/10722/344297 |
ISSN | 2023 Impact Factor: 3.1 2023 SCImago Journal Rankings: 0.964 |
DC Field | Value | Language |
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dc.contributor.author | Dong, Zheng | - |
dc.contributor.author | Fu, Chuanqing | - |
dc.contributor.author | Lu, Chentao | - |
dc.contributor.author | Nóvoa, Xosé Ramón | - |
dc.contributor.author | Ye, Hailong | - |
dc.date.accessioned | 2024-07-16T03:42:21Z | - |
dc.date.available | 2024-07-16T03:42:21Z | - |
dc.date.issued | 2023-10-01 | - |
dc.identifier.citation | Journal of Materials in Civil Engineering, 2023, v. 35, n. 10 | - |
dc.identifier.issn | 0899-1561 | - |
dc.identifier.uri | http://hdl.handle.net/10722/344297 | - |
dc.description.abstract | This work reveals influence of the stress state of steel bars on the critical chloride content for depassivation in a simulated concrete pore solution (SCPS). The passivation behavior of steel in chloride-free SCPS and depassivation behavior in SCPS with incremental addition of chloride were studied by electrochemical techniques including electrochemical impedance spectroscopy, Mott-Shottky test, cyclic voltammetry, and others. Results demonstrated that stress enhanced the redox activity in highly alkaline SCPS, where enhancement by tension was more pronounced than compression. Additionally, stress increased the donor density and dielectric properties of the constant-phase element of the passive film. The critical chloride content of steels can be considerably lowered by 80% under stress. | - |
dc.language | eng | - |
dc.publisher | American Society of Civil Engineers | - |
dc.relation.ispartof | Journal of Materials in Civil Engineering | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Concrete pore solution | - |
dc.subject | Critical chloride content | - |
dc.subject | Electrochemical techniques | - |
dc.subject | Steel corrosion | - |
dc.subject | Stress | - |
dc.title | Effect of Stress on the Critical Chloride Content of Steel Bar in Simulated Concrete Pore Solution | - |
dc.type | Article | - |
dc.identifier.doi | 10.1061/JMCEE7.MTENG-16037 | - |
dc.identifier.scopus | eid_2-s2.0-85166388550 | - |
dc.identifier.volume | 35 | - |
dc.identifier.issue | 10 | - |
dc.identifier.eissn | 1943-5533 | - |
dc.identifier.issnl | 0899-1561 | - |