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Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor
Corrosion of steel bars is of great significance for safety and service life of reinforced concrete structures. This work develops a prediction method for steel corrosion mass loss rate before the crack of concrete structure based on a spiral distributed fiber optic sensor. Reinforced concrete sampl...
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/PMC9697408/ https://www.ncbi.nlm.nih.gov/pubmed/36363888 http://dx.doi.org/10.3390/mi13111868 |
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author | Li, Jian-Zhi Zhao, Yi-Yao Wang, Jun-Jie |
author_facet | Li, Jian-Zhi Zhao, Yi-Yao Wang, Jun-Jie |
author_sort | Li, Jian-Zhi |
collection | PubMed |
description | Corrosion of steel bars is of great significance for safety and service life of reinforced concrete structures. This work develops a prediction method for steel corrosion mass loss rate before the crack of concrete structure based on a spiral distributed fiber optic sensor. Reinforced concrete sample instrumented with a spiral distributed fiber optic sensor were prepared. The mathematic relationship between the corrosion mass loss rate of steel bar and the spiral distributed strain is theoretically derived. Meanwhile, numerical analysis by MATLAB shows that these parameters such as the protective layer thickness, corrosion mass loss rate, bar diameter, corrosion expansion coefficient have a remarkable influence on spiral distributed strain. Additionally, electrical accelerated corrosion experiment was performed on the reinforced concrete specimens. The helix strain along the distributed sensor was used to evaluate the corrosion mass loss of steel bar. Further, the influencing factors on the corrosion sensitivity are illustrated here and the corrosion mass loss rate before concrete crack is also quantified. This research provides insights into the corrosion deteriorate mechanism. |
format | Online Article Text |
id | pubmed-9697408 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-96974082022-11-26 Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor Li, Jian-Zhi Zhao, Yi-Yao Wang, Jun-Jie Micromachines (Basel) Article Corrosion of steel bars is of great significance for safety and service life of reinforced concrete structures. This work develops a prediction method for steel corrosion mass loss rate before the crack of concrete structure based on a spiral distributed fiber optic sensor. Reinforced concrete sample instrumented with a spiral distributed fiber optic sensor were prepared. The mathematic relationship between the corrosion mass loss rate of steel bar and the spiral distributed strain is theoretically derived. Meanwhile, numerical analysis by MATLAB shows that these parameters such as the protective layer thickness, corrosion mass loss rate, bar diameter, corrosion expansion coefficient have a remarkable influence on spiral distributed strain. Additionally, electrical accelerated corrosion experiment was performed on the reinforced concrete specimens. The helix strain along the distributed sensor was used to evaluate the corrosion mass loss of steel bar. Further, the influencing factors on the corrosion sensitivity are illustrated here and the corrosion mass loss rate before concrete crack is also quantified. This research provides insights into the corrosion deteriorate mechanism. MDPI 2022-10-30 /pmc/articles/PMC9697408/ /pubmed/36363888 http://dx.doi.org/10.3390/mi13111868 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 Li, Jian-Zhi Zhao, Yi-Yao Wang, Jun-Jie Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title | Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title_full | Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title_fullStr | Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title_full_unstemmed | Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title_short | Prediction Method of Steel Corrosion Rate Based on the Helix Distributed Sensor |
title_sort | prediction method of steel corrosion rate based on the helix distributed sensor |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9697408/ https://www.ncbi.nlm.nih.gov/pubmed/36363888 http://dx.doi.org/10.3390/mi13111868 |
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