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A Monitoring Method Based on FBG for Concrete Corrosion Cracking
Corrosion cracking of reinforced concrete caused by chloride salt is one of the main determinants of structure durability. Monitoring the entire process of concrete corrosion cracking is critical for assessing the remaining life of the structure and determining if maintenance is needed. Fiber Bragg...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2016
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970139/ https://www.ncbi.nlm.nih.gov/pubmed/27428972 http://dx.doi.org/10.3390/s16071093 |
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author | Mao, Jianghong Xu, Fangyuan Gao, Qian Liu, Shenglin Jin, Weiliang Xu, Yidong |
author_facet | Mao, Jianghong Xu, Fangyuan Gao, Qian Liu, Shenglin Jin, Weiliang Xu, Yidong |
author_sort | Mao, Jianghong |
collection | PubMed |
description | Corrosion cracking of reinforced concrete caused by chloride salt is one of the main determinants of structure durability. Monitoring the entire process of concrete corrosion cracking is critical for assessing the remaining life of the structure and determining if maintenance is needed. Fiber Bragg Grating (FBG) sensing technology is extensively developed in photoelectric monitoring technology and has been used on many projects. FBG can detect the quasi-distribution of strain and temperature under corrosive environments, and thus it is suitable for monitoring reinforced concrete cracking. According to the mechanical principle that corrosion expansion is responsible for the reinforced concrete cracking, a package design of reinforced concrete cracking sensors based on FBG was proposed and investigated in this study. The corresponding relationship between the grating wavelength and strain was calibrated by an equal strength beam test. The effectiveness of the proposed method was verified by an electrically accelerated corrosion experiment. The fiber grating sensing technology was able to track the corrosion expansion and corrosion cracking in real time and provided data to inform decision-making for the maintenance and management of the engineering structure. |
format | Online Article Text |
id | pubmed-4970139 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2016 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-49701392016-08-04 A Monitoring Method Based on FBG for Concrete Corrosion Cracking Mao, Jianghong Xu, Fangyuan Gao, Qian Liu, Shenglin Jin, Weiliang Xu, Yidong Sensors (Basel) Article Corrosion cracking of reinforced concrete caused by chloride salt is one of the main determinants of structure durability. Monitoring the entire process of concrete corrosion cracking is critical for assessing the remaining life of the structure and determining if maintenance is needed. Fiber Bragg Grating (FBG) sensing technology is extensively developed in photoelectric monitoring technology and has been used on many projects. FBG can detect the quasi-distribution of strain and temperature under corrosive environments, and thus it is suitable for monitoring reinforced concrete cracking. According to the mechanical principle that corrosion expansion is responsible for the reinforced concrete cracking, a package design of reinforced concrete cracking sensors based on FBG was proposed and investigated in this study. The corresponding relationship between the grating wavelength and strain was calibrated by an equal strength beam test. The effectiveness of the proposed method was verified by an electrically accelerated corrosion experiment. The fiber grating sensing technology was able to track the corrosion expansion and corrosion cracking in real time and provided data to inform decision-making for the maintenance and management of the engineering structure. MDPI 2016-07-14 /pmc/articles/PMC4970139/ /pubmed/27428972 http://dx.doi.org/10.3390/s16071093 Text en © 2016 by the authors; 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 (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Mao, Jianghong Xu, Fangyuan Gao, Qian Liu, Shenglin Jin, Weiliang Xu, Yidong A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title | A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title_full | A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title_fullStr | A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title_full_unstemmed | A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title_short | A Monitoring Method Based on FBG for Concrete Corrosion Cracking |
title_sort | monitoring method based on fbg for concrete corrosion cracking |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4970139/ https://www.ncbi.nlm.nih.gov/pubmed/27428972 http://dx.doi.org/10.3390/s16071093 |
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