The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement
The need to confront the problem of corrosion resistance of steel reinforcement is an issue of major importance and a perpetual challenge to the structural integrity and reliability in reinforced concrete (RC) structures. The current experimental study presents the results of the combined effect of...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-02-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/2/275 |
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| author | Maria Basdeki Charis Apostolopoulos |
| author_facet | Maria Basdeki Charis Apostolopoulos |
| author_sort | Maria Basdeki |
| collection | DOAJ |
| description | The need to confront the problem of corrosion resistance of steel reinforcement is an issue of major importance and a perpetual challenge to the structural integrity and reliability in reinforced concrete (RC) structures. The current experimental study presents the results of the combined effect of shot blasting and coating on steel reinforcing bars in respect to their anticorrosive resistance and their mechanical behavior, at various times of exposure to corrosive environment. In the present manuscript, a comparison of different abrasive materials was primarily conducted, via electrochemical measurements (Tafel tests), to estimate the corrosion current (i<sub>corr</sub>) for each abrasive material. After the indication that corrosion resistance can be modified by shot blasting with corundum, the method of Zn85Al15 coating was chosen to further investigate the combined effect of shot blasting with coating, in terms of percentage mass loss and mechanical behavior of steel reinforcement. The results demonstrated that, upon the completion of the surface treatment process with corundum, the mechanical performance of steel bars was improved in terms of ductility. Moreover, the Zn85Al15 coating provided a satisfactory anticorrosive protection to steel bars in the entire exposure period of accelerated corrosion. The combined contribution of shot blasting and coating processes was deemed to be very encouraging and may trigger further investigation and research, for the production of a better corrosion resistance of B500c steel. |
| first_indexed | 2024-03-09T21:26:41Z |
| format | Article |
| id | doaj.art-8589ea5abdc84ac09f461985b78d96b6 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T21:26:41Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-8589ea5abdc84ac09f461985b78d96b62023-11-23T21:07:46ZengMDPI AGMetals2075-47012022-02-0112227510.3390/met12020275The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel ReinforcementMaria Basdeki0Charis Apostolopoulos1Laboratory of Technology and Strength of Materials, Department of Mechanical Engineering & Aeronautics, University of Patras, 26500 Patras, GreeceLaboratory of Technology and Strength of Materials, Department of Mechanical Engineering & Aeronautics, University of Patras, 26500 Patras, GreeceThe need to confront the problem of corrosion resistance of steel reinforcement is an issue of major importance and a perpetual challenge to the structural integrity and reliability in reinforced concrete (RC) structures. The current experimental study presents the results of the combined effect of shot blasting and coating on steel reinforcing bars in respect to their anticorrosive resistance and their mechanical behavior, at various times of exposure to corrosive environment. In the present manuscript, a comparison of different abrasive materials was primarily conducted, via electrochemical measurements (Tafel tests), to estimate the corrosion current (i<sub>corr</sub>) for each abrasive material. After the indication that corrosion resistance can be modified by shot blasting with corundum, the method of Zn85Al15 coating was chosen to further investigate the combined effect of shot blasting with coating, in terms of percentage mass loss and mechanical behavior of steel reinforcement. The results demonstrated that, upon the completion of the surface treatment process with corundum, the mechanical performance of steel bars was improved in terms of ductility. Moreover, the Zn85Al15 coating provided a satisfactory anticorrosive protection to steel bars in the entire exposure period of accelerated corrosion. The combined contribution of shot blasting and coating processes was deemed to be very encouraging and may trigger further investigation and research, for the production of a better corrosion resistance of B500c steel.https://www.mdpi.com/2075-4701/12/2/275steel reinforcementcorrosioncoatingshot blasting methodcorundum shot blastingmechanical properties |
| spellingShingle | Maria Basdeki Charis Apostolopoulos The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement Metals steel reinforcement corrosion coating shot blasting method corundum shot blasting mechanical properties |
| title | The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement |
| title_full | The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement |
| title_fullStr | The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement |
| title_full_unstemmed | The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement |
| title_short | The Effect of Shot Blasting Process on Mechanical Properties and Anti-Corrosive Behavior of Steel Reinforcement |
| title_sort | effect of shot blasting process on mechanical properties and anti corrosive behavior of steel reinforcement |
| topic | steel reinforcement corrosion coating shot blasting method corundum shot blasting mechanical properties |
| url | https://www.mdpi.com/2075-4701/12/2/275 |
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