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Effect of Chloride Ions Concentrations to Breakdown the Passive Film on Rebar Surface Exposed to L-Arginine Containing Pore Solution
| Content Provider | MDPI |
|---|---|
| Author | Singh, Jitendra Kumar Mandal, Soumen Lee, Han-Seung Yang, Hyun-Min |
| Copyright Year | 2021 |
| Description | In the present study, 0.115 M L-arginine (LA) has been used as an eco-friendly inhibitor in simulated concrete pore solutions (SP-0) in order to form passive films on a steel rebar–solution interface until 144 h. Hence, 0.51 (SP-1) and 0.85 M NaCl (SP-2) were added in LA containing SP-0 solution to breakdown the passive film and to initiate corrosion reactions. The electrochemical results show that the charge transfer resistance $(R_{ct}$) of steel rebar exposed to SP-1 and SP-2 solutions increased with respect to immersion periods. The sample exposed to the SP-2 solution initiated the corrosion reaction at the steel rebar–solution interface after 24 h of NaCl addition and formed pits; on the other hand, the sample without NaCl added, i.e., SP-0, showed agglomeration and dense morphology of corrosion products. |
| Starting Page | 5693 |
| e-ISSN | 19961944 |
| DOI | 10.3390/ma14195693 |
| Journal | Materials |
| Issue Number | 19 |
| Volume Number | 14 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2021-09-30 |
| Access Restriction | Open |
| Subject Keyword | Materials Steel Rebar Concrete Pore Solution Passive Film Corrosion Electrochemical Impedance Spectroscopy Scanning Electron Microscopy |
| Content Type | Text |
| Resource Type | Article |
