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Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion

Steel corrosion is major reason of the deterioration of reinforced concrete structures. Decreasing the transportation of erosion ions in concrete is one of effective methods to protect the steel from corrosion. In the present work, a novel nano-hydrophobic admixture is introduced to improve the ion-...

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Detalles Bibliográficos
Autores principales: Cai, Jingshun, Ran, Qianping, Ma, Qi, Zhang, Hao, Liu, Kai, Zhou, Yang, Mu, Song
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573076/
https://www.ncbi.nlm.nih.gov/pubmed/36234183
http://dx.doi.org/10.3390/ma15196842
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author Cai, Jingshun
Ran, Qianping
Ma, Qi
Zhang, Hao
Liu, Kai
Zhou, Yang
Mu, Song
author_facet Cai, Jingshun
Ran, Qianping
Ma, Qi
Zhang, Hao
Liu, Kai
Zhou, Yang
Mu, Song
author_sort Cai, Jingshun
collection PubMed
description Steel corrosion is major reason of the deterioration of reinforced concrete structures. Decreasing the transportation of erosion ions in concrete is one of effective methods to protect the steel from corrosion. In the present work, a novel nano-hydrophobic admixture is introduced to improve the ion-diffusion properties and the corrosion resistance of reinforced steel. Compared with unmodified concrete, the nano-hydrophobic admixture effectively decreases the water adsorption, water evaporation, and chloride ions transport in a concrete structure, and then improved the concrete’s durability. The concrete’s water adsorption decreased more than 78%, and the initial corrosion time of reinforced steel is prolonged more than one time by treatment with the nano-hydrophobic admixture. The inhibition penetration of the medium in concrete modified by hydrophobic nanoparticles is the key to provide the protective properties of steel reinforcement from chloride erosion.
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spelling pubmed-95730762022-10-17 Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion Cai, Jingshun Ran, Qianping Ma, Qi Zhang, Hao Liu, Kai Zhou, Yang Mu, Song Materials (Basel) Article Steel corrosion is major reason of the deterioration of reinforced concrete structures. Decreasing the transportation of erosion ions in concrete is one of effective methods to protect the steel from corrosion. In the present work, a novel nano-hydrophobic admixture is introduced to improve the ion-diffusion properties and the corrosion resistance of reinforced steel. Compared with unmodified concrete, the nano-hydrophobic admixture effectively decreases the water adsorption, water evaporation, and chloride ions transport in a concrete structure, and then improved the concrete’s durability. The concrete’s water adsorption decreased more than 78%, and the initial corrosion time of reinforced steel is prolonged more than one time by treatment with the nano-hydrophobic admixture. The inhibition penetration of the medium in concrete modified by hydrophobic nanoparticles is the key to provide the protective properties of steel reinforcement from chloride erosion. MDPI 2022-10-01 /pmc/articles/PMC9573076/ /pubmed/36234183 http://dx.doi.org/10.3390/ma15196842 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
Cai, Jingshun
Ran, Qianping
Ma, Qi
Zhang, Hao
Liu, Kai
Zhou, Yang
Mu, Song
Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title_full Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title_fullStr Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title_full_unstemmed Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title_short Influence of a Nano-Hydrophobic Admixture on Concrete Durability and Steel Corrosion
title_sort influence of a nano-hydrophobic admixture on concrete durability and steel corrosion
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9573076/
https://www.ncbi.nlm.nih.gov/pubmed/36234183
http://dx.doi.org/10.3390/ma15196842
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