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Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers

This study aims to prepare bamboo-fiber-reinforced cement composites and provide a solution to the issue of poor interfacial adhesion between bamboo fibers and cement matrix. The original bamboo fibers were modified by three moderately low-cost and easy-to-handle treatments including glycerol, alumi...

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Autores principales: Ban, Yang, Zhi, Wei, Fei, Mingen, Liu, Wendi, Yu, Demei, Fu, Tengfei, Qiu, Renhui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7698056/
https://www.ncbi.nlm.nih.gov/pubmed/33187069
http://dx.doi.org/10.3390/polym12112650
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author Ban, Yang
Zhi, Wei
Fei, Mingen
Liu, Wendi
Yu, Demei
Fu, Tengfei
Qiu, Renhui
author_facet Ban, Yang
Zhi, Wei
Fei, Mingen
Liu, Wendi
Yu, Demei
Fu, Tengfei
Qiu, Renhui
author_sort Ban, Yang
collection PubMed
description This study aims to prepare bamboo-fiber-reinforced cement composites and provide a solution to the issue of poor interfacial adhesion between bamboo fibers and cement matrix. The original bamboo fibers were modified by three moderately low-cost and easy-to-handle treatments including glycerol, aluminate ester, and silane treatments. The performance of the modified bamboo-fiber-reinforced cement composites was evaluated by a series of mechanical and durability tests, including flexural and compressive strength, water absorption, chloride ion penetration, drying shrinkage, freeze–thaw resistance, and carbonization. In addition, the microstructures of composites were characterized using a scanning electron microscope (SEM). The results showed that the composites reinforced with glycerol-modified bamboo fibers had 14% increased flexural strength and comparable compressive strength. From durability perspectives, all treatments showed similar performance in drying shrinkage, whereas aluminate ester treatment was the most effective in terms of impermeability, chloride resistance, freeze–thaw resistance, and carbonization. The results could provide insights to efficient and effective natural fiber treatment to enable better performance of natural-fiber-reinforced cement-based materials.
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spelling pubmed-76980562020-11-29 Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers Ban, Yang Zhi, Wei Fei, Mingen Liu, Wendi Yu, Demei Fu, Tengfei Qiu, Renhui Polymers (Basel) Article This study aims to prepare bamboo-fiber-reinforced cement composites and provide a solution to the issue of poor interfacial adhesion between bamboo fibers and cement matrix. The original bamboo fibers were modified by three moderately low-cost and easy-to-handle treatments including glycerol, aluminate ester, and silane treatments. The performance of the modified bamboo-fiber-reinforced cement composites was evaluated by a series of mechanical and durability tests, including flexural and compressive strength, water absorption, chloride ion penetration, drying shrinkage, freeze–thaw resistance, and carbonization. In addition, the microstructures of composites were characterized using a scanning electron microscope (SEM). The results showed that the composites reinforced with glycerol-modified bamboo fibers had 14% increased flexural strength and comparable compressive strength. From durability perspectives, all treatments showed similar performance in drying shrinkage, whereas aluminate ester treatment was the most effective in terms of impermeability, chloride resistance, freeze–thaw resistance, and carbonization. The results could provide insights to efficient and effective natural fiber treatment to enable better performance of natural-fiber-reinforced cement-based materials. MDPI 2020-11-11 /pmc/articles/PMC7698056/ /pubmed/33187069 http://dx.doi.org/10.3390/polym12112650 Text en © 2020 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
Ban, Yang
Zhi, Wei
Fei, Mingen
Liu, Wendi
Yu, Demei
Fu, Tengfei
Qiu, Renhui
Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title_full Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title_fullStr Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title_full_unstemmed Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title_short Preparation and Performance of Cement Mortar Reinforced by Modified Bamboo Fibers
title_sort preparation and performance of cement mortar reinforced by modified bamboo fibers
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7698056/
https://www.ncbi.nlm.nih.gov/pubmed/33187069
http://dx.doi.org/10.3390/polym12112650
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