Tensile Properties of Fibers Reinforced Cementitious Materials Modified by Graphene Oxide

被引：0
|
作者：
Luo S. [1 ]
Yao J. [1 ]
Zhou E. [1 ]
Wang S. [2 ]
机构：
[1] College of Civil Engineering, Fuzhou University, Fuzhou
[2] Fujian Provincial Institute of Architectural Design and Research Corporation, Fuzhou
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2024年 / 27卷 / 05期
关键词：
cementitious material; graphene oxide; microscopic property; polyvinyl alcohol （PVA）fiber; uniaxial tensile property;
D O I：
10.3969/j.issn.1007-9629.2024.05.003
中图分类号：
学科分类号：
摘要：
In order to improve the mechanical properties of cementitious materials reinforced with polyvinyl alcohol （PVA）fibers，graphene oxide（GO）was introduced into cementitious materials reinforced with PVA fibers，and the effects of GO dosage in the range of 0%-0.05% on the uniaxial tensile properties of the materials were investigated. The results show that the appropriate GO dosage can effectively improve the uniaxial tensile properties of the materials，and the initial crack tensile strength，ultimate tensile strength and ultimate tensile strain of the cementitious materials reaches the maximum value，increased by 26.97%，31.28% and 23.25%，respectively compared with the control group without GO at the age of 28 d，when GO dosage is 0.01%. An appropriate GO dosage can optimize the pore structure，reduce internal defects in the material，facilitate the formation of hydration products，enhance the density of the material’s microstructure，and improve the interfacial bonding force between the fibers and the matrix，thus enhancing the macroscopic properties of the materials reinforced with PVA fibers. © 2024 Tongji University. All rights reserved.
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页码：400 / 407
页数：7
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