Background: Lack of interphase compatibility between the fabric and the matrix significantly impairs the load-bearing capacity of textile reinforced mortar (TRM). In this study, we consider the application of two inorganic surface coatings for enhancing the interphase bond properties. Methods: Either of two silica-based coatings, namely nano- and micro-silica, were applied to alkali-resistant glass (ARG) and to hybrid carbon–ARG woven fabric. Mechanical performance of TRM reinforced with the uncoated and the coated fabric was compared in uniaxial tensile tests. Results: Mechanical testing provides evidence of a remarkable enhancement in terms of ultimate strength and deformability for the coated specimens. This effect can be ascribed to the improved hydrophilicity of the fibers’ surface and to the activation of pozzolanic reaction at the interphase. In addition, penetration of nano- and microparticles in the bundle of the textile yarns reduces the occurrence of telescopic failure.

中文翻译：

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具有改性界面的石灰水泥纺织增强砂浆 (TRM)

背景：织物和基体之间缺乏相间相容性会显着削弱织物增强砂浆 (TRM) 的承载能力。在这项研究中，我们考虑应用两种无机表面涂层来增强相间结合性能。方法：将两种二氧化硅基涂层中的任何一种，即纳米二氧化硅和微二氧化硅，应用于耐碱玻璃 (ARG) 和混合碳-ARG 机织织物。在单轴拉伸试验中比较了用未涂层和涂层织物增强的 TRM 的机械性能。结果：机械测试提供了涂层试样在极限强度和变形能力方面显着增强的证据。这种效果可归因于纤维表面亲水性的提高和界面处火山灰反应的活化。此外，纳米颗粒和微米颗粒在纺织纱线束中的渗透减少了伸缩故障的发生。