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Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents

The utilization of a novel monolithic superhydrophobic cement material effectively prevents water infiltration and enhances the longevity of the material. A method for improving superhydrophobic concrete was investigated with the aim of increasing its strength and reducing its cost by compounding su...

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Autores principales: Luo, Jie, Xu, Yi, Chu, Hongqiang, Yang, Lu, Song, Zijian, Jin, Weizhun, Wang, Xiaowen, Xue, Yuan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574258/
https://www.ncbi.nlm.nih.gov/pubmed/37834729
http://dx.doi.org/10.3390/ma16196592
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author Luo, Jie
Xu, Yi
Chu, Hongqiang
Yang, Lu
Song, Zijian
Jin, Weizhun
Wang, Xiaowen
Xue, Yuan
author_facet Luo, Jie
Xu, Yi
Chu, Hongqiang
Yang, Lu
Song, Zijian
Jin, Weizhun
Wang, Xiaowen
Xue, Yuan
author_sort Luo, Jie
collection PubMed
description The utilization of a novel monolithic superhydrophobic cement material effectively prevents water infiltration and enhances the longevity of the material. A method for improving superhydrophobic concrete was investigated with the aim of increasing its strength and reducing its cost by compounding superhydrophobic substances with water repellents. The experimental tests encompassed the assessment of the compressive strength, contact angle, and water absorption of the superhydrophobic cementitious materials. The findings demonstrate that an increase in the dosage of isobutyltriethoxysilane (IBTES) progressively enhances the contact angle of the specimen, but significantly diminishes its compressive strength. The contact angle of SIKS mirrors that of SIS3, with a superior compressive strength that is 68% higher. Moreover, superhydrophobicity directly influences the water absorption of cementitious materials, with a more pronounced superhydrophobic effect leading to a lower water absorption rate. The water absorption of cementitious materials is influenced by the combined effect of porosity and superhydrophobicity. Furthermore, FT−IR tests unveil functional mappings, such as -CH(3) which can reduce the surface energy of materials, signifying successful modification with hydrophobic substances.
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spelling pubmed-105742582023-10-14 Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents Luo, Jie Xu, Yi Chu, Hongqiang Yang, Lu Song, Zijian Jin, Weizhun Wang, Xiaowen Xue, Yuan Materials (Basel) Article The utilization of a novel monolithic superhydrophobic cement material effectively prevents water infiltration and enhances the longevity of the material. A method for improving superhydrophobic concrete was investigated with the aim of increasing its strength and reducing its cost by compounding superhydrophobic substances with water repellents. The experimental tests encompassed the assessment of the compressive strength, contact angle, and water absorption of the superhydrophobic cementitious materials. The findings demonstrate that an increase in the dosage of isobutyltriethoxysilane (IBTES) progressively enhances the contact angle of the specimen, but significantly diminishes its compressive strength. The contact angle of SIKS mirrors that of SIS3, with a superior compressive strength that is 68% higher. Moreover, superhydrophobicity directly influences the water absorption of cementitious materials, with a more pronounced superhydrophobic effect leading to a lower water absorption rate. The water absorption of cementitious materials is influenced by the combined effect of porosity and superhydrophobicity. Furthermore, FT−IR tests unveil functional mappings, such as -CH(3) which can reduce the surface energy of materials, signifying successful modification with hydrophobic substances. MDPI 2023-10-07 /pmc/articles/PMC10574258/ /pubmed/37834729 http://dx.doi.org/10.3390/ma16196592 Text en © 2023 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
Luo, Jie
Xu, Yi
Chu, Hongqiang
Yang, Lu
Song, Zijian
Jin, Weizhun
Wang, Xiaowen
Xue, Yuan
Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title_full Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title_fullStr Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title_full_unstemmed Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title_short Research on the Performance of Superhydrophobic Cement-Based Materials Based on Composite Hydrophobic Agents
title_sort research on the performance of superhydrophobic cement-based materials based on composite hydrophobic agents
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10574258/
https://www.ncbi.nlm.nih.gov/pubmed/37834729
http://dx.doi.org/10.3390/ma16196592
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