The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete

The purpose of this study was to solve the chloride corrosion damage problems of the rebar in reinforced concrete structures under the chloride environment. The effects of 1.0% triethanolamine (abbreviated as 1.0% TEA), 1.0% Ca(NO2)2, and 0.5% TEA + 0.5% Ca(NO2)2 (abbreviated as 1.0% composite corro...

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Autores principales: Hang Meiyan, Jiang Minghui, Xu Junwei, Cheng Teng, Wang Hao, Zhou Gangming
Formato: article
Lenguaje:EN
Publicado: De Gruyter 2021
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Acceso en línea:https://doaj.org/article/459e6b4468ff4df9b50ceefa285b0525
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spelling oai:doaj.org-article:459e6b4468ff4df9b50ceefa285b05252021-12-05T14:11:03ZThe electrochemical performance and modification mechanism of the corrosion inhibitor on concrete2191-035910.1515/secm-2021-0037https://doaj.org/article/459e6b4468ff4df9b50ceefa285b05252021-07-01T00:00:00Zhttps://doi.org/10.1515/secm-2021-0037https://doaj.org/toc/2191-0359The purpose of this study was to solve the chloride corrosion damage problems of the rebar in reinforced concrete structures under the chloride environment. The effects of 1.0% triethanolamine (abbreviated as 1.0% TEA), 1.0% Ca(NO2)2, and 0.5% TEA + 0.5% Ca(NO2)2 (abbreviated as 1.0% composite corrosion inhibitor) on the electrochemical performance and modification mechanism of the mortar specimens were investigated by combining macro experiment and microanalysis. The results showed that the electrode potential of the rebar was effectively improved by incorporating the 1.0% composite corrosion inhibitor. This composite corrosion inhibitor displayed the ability to stabilize the electrode potential of the rebar; it also formed a passive film on the surfaces of the rebar, protected the rebar from chloride attack, and achieved satisfactory electrochemical performance. In addition, it could also effectively improve the strength of the mortar specimens and possessed the strong ability to bind chloride ions, thus signifying that it could promote cement hydration and accelerate the formation of cement to form AFt crystals. Therefore, the results of this investigation confirmed that this composite corrosion inhibitor could be effectively used in practical engineering to prevent the corrosion of reinforced concrete structures.Hang MeiyanJiang MinghuiXu JunweiCheng TengWang HaoZhou GangmingDe Gruyterarticlecorrosion inhibitorselectrochemical performancemodification mechanismMaterials of engineering and construction. Mechanics of materialsTA401-492ENScience and Engineering of Composite Materials, Vol 28, Iss 1, Pp 352-562 (2021)
institution DOAJ
collection DOAJ
language EN
topic corrosion inhibitors
electrochemical performance
modification mechanism
Materials of engineering and construction. Mechanics of materials
TA401-492
spellingShingle corrosion inhibitors
electrochemical performance
modification mechanism
Materials of engineering and construction. Mechanics of materials
TA401-492
Hang Meiyan
Jiang Minghui
Xu Junwei
Cheng Teng
Wang Hao
Zhou Gangming
The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
description The purpose of this study was to solve the chloride corrosion damage problems of the rebar in reinforced concrete structures under the chloride environment. The effects of 1.0% triethanolamine (abbreviated as 1.0% TEA), 1.0% Ca(NO2)2, and 0.5% TEA + 0.5% Ca(NO2)2 (abbreviated as 1.0% composite corrosion inhibitor) on the electrochemical performance and modification mechanism of the mortar specimens were investigated by combining macro experiment and microanalysis. The results showed that the electrode potential of the rebar was effectively improved by incorporating the 1.0% composite corrosion inhibitor. This composite corrosion inhibitor displayed the ability to stabilize the electrode potential of the rebar; it also formed a passive film on the surfaces of the rebar, protected the rebar from chloride attack, and achieved satisfactory electrochemical performance. In addition, it could also effectively improve the strength of the mortar specimens and possessed the strong ability to bind chloride ions, thus signifying that it could promote cement hydration and accelerate the formation of cement to form AFt crystals. Therefore, the results of this investigation confirmed that this composite corrosion inhibitor could be effectively used in practical engineering to prevent the corrosion of reinforced concrete structures.
format article
author Hang Meiyan
Jiang Minghui
Xu Junwei
Cheng Teng
Wang Hao
Zhou Gangming
author_facet Hang Meiyan
Jiang Minghui
Xu Junwei
Cheng Teng
Wang Hao
Zhou Gangming
author_sort Hang Meiyan
title The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
title_short The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
title_full The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
title_fullStr The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
title_full_unstemmed The electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
title_sort electrochemical performance and modification mechanism of the corrosion inhibitor on concrete
publisher De Gruyter
publishDate 2021
url https://doaj.org/article/459e6b4468ff4df9b50ceefa285b0525
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