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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-...
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/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. |
format | Online Article Text |
id | pubmed-9573076 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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