Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance
In order to solve the problem of steel bar desensitization in island concrete, which leads to steel bar corrosion and greatly reduces the service life of structures, this work studies the influence of electrochemical corrosion prevention technology on the structure and performance of concrete. Throu...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2022/5702379 |
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| _version_ | 1850106219130257408 |
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| author | Qin Yang |
| author_facet | Qin Yang |
| author_sort | Qin Yang |
| collection | DOAJ |
| description | In order to solve the problem of steel bar desensitization in island concrete, which leads to steel bar corrosion and greatly reduces the service life of structures, this work studies the influence of electrochemical corrosion prevention technology on the structure and performance of concrete. Through linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS), the reinforcement in seawater sand concrete and ordinary concrete under two different chloride ion erosion modes was tested electrochemically, and then, its polarization curve and electrochemical impedance spectrum were obtained and analyzed. The experimental results show that the slope ratio of anode Tafel decreases significantly under the condition of steel bar passivation. The self-corrosion potential of reinforcement is −204 MV, which is much higher than −480 MV obtained from early testing. The self-corrosion potential obtained from the L3 polarization test tends to be stable after 84 days. As the test continues, the capacitive reactance arc in L1 and L2 medium-frequency region will gradually disappear with the continuous development of corrosion. Conclusion. This study explains the electrochemical mechanism and rate of reinforcement corrosion in seawater and sea sand concrete. |
| format | Article |
| id | doaj-art-3164d37e2aea4fc599990205ab37e312 |
| institution | OA Journals |
| issn | 2090-9071 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-3164d37e2aea4fc599990205ab37e3122025-08-20T02:38:52ZengWileyJournal of Chemistry2090-90712022-01-01202210.1155/2022/5702379Influence of Electrochemical Anticorrosion Technology on Concrete Structure and PerformanceQin Yang0Henan College of TransportationIn order to solve the problem of steel bar desensitization in island concrete, which leads to steel bar corrosion and greatly reduces the service life of structures, this work studies the influence of electrochemical corrosion prevention technology on the structure and performance of concrete. Through linear sweep voltammetry (LSV) and electrochemical impedance spectroscopy (EIS), the reinforcement in seawater sand concrete and ordinary concrete under two different chloride ion erosion modes was tested electrochemically, and then, its polarization curve and electrochemical impedance spectrum were obtained and analyzed. The experimental results show that the slope ratio of anode Tafel decreases significantly under the condition of steel bar passivation. The self-corrosion potential of reinforcement is −204 MV, which is much higher than −480 MV obtained from early testing. The self-corrosion potential obtained from the L3 polarization test tends to be stable after 84 days. As the test continues, the capacitive reactance arc in L1 and L2 medium-frequency region will gradually disappear with the continuous development of corrosion. Conclusion. This study explains the electrochemical mechanism and rate of reinforcement corrosion in seawater and sea sand concrete.http://dx.doi.org/10.1155/2022/5702379 |
| spellingShingle | Qin Yang Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance Journal of Chemistry |
| title | Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance |
| title_full | Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance |
| title_fullStr | Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance |
| title_full_unstemmed | Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance |
| title_short | Influence of Electrochemical Anticorrosion Technology on Concrete Structure and Performance |
| title_sort | influence of electrochemical anticorrosion technology on concrete structure and performance |
| url | http://dx.doi.org/10.1155/2022/5702379 |
| work_keys_str_mv | AT qinyang influenceofelectrochemicalanticorrosiontechnologyonconcretestructureandperformance |