Tensile and Bending Properties of Textile Reinforced ECC

被引：0
|
作者：
Li C. [1 ]
Yin S. [1 ,2 ]
Zhao J. [1 ]
机构：
[1] Jiangsu Key Laboratory of Environmental Impact and Structural Safety in Engineering, China University of Mining and Technology, Xuzhou
[2] State Key Laboratory for Geomechanics & Deep Underground Engineering, China University of Mining and Technology, Xuzhou
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2021年 / 24卷 / 04期
关键词：
Bending property; PVA fiber; Tensile property; Textile reinforced ECC;
D O I：
10.3969/j.issn.1007-9629.2021.04.009
中图分类号：
学科分类号：
摘要：
Through tensile and four-point bending tests, the effects of the layers and types of textile, the coating treatments of textile, and the volume content of polyvinyl alclohol(PVA) fibers on the tensile and bending properties of textile reinforced engineered cementitious composites(TRE) were studied. The test results show that, compared with the single-layer carbon fiber-glass fiber TRE specimens, the ultimate tensile stress of the double-layer TRE specimens becomes nearly double, the ultimate bending load increases from 0.73kN to 1.62kN, the ultimate tensile stress and ultimate bending load are significantly improved, and the rigidity is increased. Compared with carbon fiber-glass fiber TRE specimens, the tensile and bending properties of basalt fiber-glass fiber TRE specimens are lower. The ultimate tensile stress and ultimate bending load of the TRE specimens show a decreasing trend after the carbon fiber-glass fiber textile surface is impregnated by epoxy resin and covered with sand, but the ultimate tensile deformation and ultimate mid-span deflection increase. When the PVA fiber volume content is increased from 1.0% to 2.0%, the ultimate tensile stress of the single-layer carbon fiber-glass fiber TRE specimen increases from 4.15MPa to 7.05MPa, the bending cracking load increases from 0.08kN to 0.21kN, the tensile and bending properties of TRE specimens are improved. © 2021, Editorial Department of Journal of Building Materials. All right reserved.
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页码：736 / 741
页数：5
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