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Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement
The construction of subways, hydroelectric stations and water substations is exposed to stray currents, which can accelerate concrete corrosion. The influence of stray currents on reinforced concrete structures is unclear. In this paper, the influence of concrete strength grade, reinforcement diamet...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9607391/ https://www.ncbi.nlm.nih.gov/pubmed/36295351 http://dx.doi.org/10.3390/ma15207287 |
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author | Yang, Weijun Ye, Xin Li, Rongjun Yang, Jianyu |
author_facet | Yang, Weijun Ye, Xin Li, Rongjun Yang, Jianyu |
author_sort | Yang, Weijun |
collection | PubMed |
description | The construction of subways, hydroelectric stations and water substations is exposed to stray currents, which can accelerate concrete corrosion. The influence of stray currents on reinforced concrete structures is unclear. In this paper, the influence of concrete strength grade, reinforcement diameter and stray current intensity on the extent of reinforcement corrosion and calcium ion dissolution were investigated, and the damage of reinforcement and calcium ion corrosion to concrete strength was investigated by simulating a stray current environment and conducting an electrified acceleration test. The test results show that the higher the strength grade of concrete, the lower the stray current intensity and the smaller the corrosion rate and calcium ion dissolution rate of reinforcement; with the increase in the diameter of reinforcement the corrosion rate decreases, but the calcium ion dissolution rate is not affected by reinforcement diameter. The damage effect of reinforcement corrosion on concrete compressive strength is more obvious than that of calcium ion corrosion. |
format | Online Article Text |
id | pubmed-9607391 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96073912022-10-28 Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement Yang, Weijun Ye, Xin Li, Rongjun Yang, Jianyu Materials (Basel) Article The construction of subways, hydroelectric stations and water substations is exposed to stray currents, which can accelerate concrete corrosion. The influence of stray currents on reinforced concrete structures is unclear. In this paper, the influence of concrete strength grade, reinforcement diameter and stray current intensity on the extent of reinforcement corrosion and calcium ion dissolution were investigated, and the damage of reinforcement and calcium ion corrosion to concrete strength was investigated by simulating a stray current environment and conducting an electrified acceleration test. The test results show that the higher the strength grade of concrete, the lower the stray current intensity and the smaller the corrosion rate and calcium ion dissolution rate of reinforcement; with the increase in the diameter of reinforcement the corrosion rate decreases, but the calcium ion dissolution rate is not affected by reinforcement diameter. The damage effect of reinforcement corrosion on concrete compressive strength is more obvious than that of calcium ion corrosion. MDPI 2022-10-18 /pmc/articles/PMC9607391/ /pubmed/36295351 http://dx.doi.org/10.3390/ma15207287 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Yang, Weijun Ye, Xin Li, Rongjun Yang, Jianyu Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title | Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title_full | Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title_fullStr | Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title_full_unstemmed | Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title_short | Effect of Stray Current on Corrosion and Calcium Ion Corrosion of Concrete Reinforcement |
title_sort | effect of stray current on corrosion and calcium ion corrosion of concrete reinforcement |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9607391/ https://www.ncbi.nlm.nih.gov/pubmed/36295351 http://dx.doi.org/10.3390/ma15207287 |
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