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| Effect of New Rust Inhibitor on Chloride Diffusion in Concrete under Stray Current |
| Received:September 12, 2019 Revised:October 21, 2019 |
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| DOI：10.7643/issn.1672-9242.2020.04.015 |
| KeyWord:coupling action of stray current and chloride ion new rust inhibitor electric flux method RCM method |
| Author | Institution |
| ZHANG Kai-yu |
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan , China |
| SUN Qi-lei |
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan , China |
| CHONG Xi |
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan , China |
| YING Lu-jun |
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan , China |
| NAN Hong-you |
School of Materials Science and Engineering, Shandong Jianzhu University, Jinan , China |
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| Abstract: |
| The work aims to explore the corrosion regularity of concrete under the coupling action of stray current and chloride ion and study the rust resistance of the new type of rust inhibitor. The penetration resistance of the chloride ion in concrete under the action of 20V stray current was characterized by electric flux method and RCM method, and a comparative experiment was set up to evaluate the effect of the new type of rust inhibitor on the penetration resistance of concrete chloride ion. Under the coupling action of stray current and chloride ion, the corrosion tendency of concrete structure became larger to accelerate the corrosion reaction. After 48 hours of electrification, the measured electric flux of concrete structure reached 5778.67C. Compared with blank group, the chloride diffusion coefficient of concrete blocks with rust inhibitor decreased by 45.62%. The concrete blocks with 4% rust inhibitor have better resistance to chloride ion penetration. |
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