Direct Shear Bond Tests of Fabric-Reinforced Cementitious Matrix Materials
Direct Shear Bond Tests of Fabric-Reinforced Cementitious Matrix Materials
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DOI：
10.1061/(asce)cc.1943-5614.0000991
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发表时间：
2020-02-01
影响因子：
4.6
通讯作者：
Nanni, Antonio
中科院分区：
文献类型：
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作者：
Carozzi, Francesca Giulia;Arboleda, Diana;Nanni, Antonio
织物增强水泥基复合材料是将干燥的纤维织物嵌入富含短纤维的无机砂浆中。这些复合材料特别适合用于加固历史建筑，因为它们与基材具有高度的相容性、蒸汽渗透性和耐久性。影响外部应用于砌体或混凝土结构的复合材料的有效性的最关键因素之一是系统与基底的剥离。在FRCM系统中，故障通常位于砂浆-织物界面处。本文总结了六种不同FRCM系统在不同键长和基底材料配置下的键合特性的实验研究。最后，提出了在指南和验收标准中纳入试验程序的一些注意事项和指示。(C)2019年美国土木工程师协会。
Fabric-reinforced cementitious matrix (FRCM) composites consist of a dry fiber fabric embedded in an inorganic mortar that may be enriched with short fibers. These composites are particularly well-suited for the strengthening of historical buildings due to their high compatibility with the substrate, vapor permeability, and durability. One of the most critical factors influencing the effectiveness of a composite applied externally to masonry or concrete structures is debonding of the system from the substrate. In FRCM systems, the failure is often localized at the mortar-fabric interface. This paper presents a summary of experimental investigations of the bond properties of six different FRCM systems in various configurations of bond length and substrate material. Finally, some considerations and indications for inclusion of the test procedure in guidelines and acceptance criteria are presented. (C) 2019 American Society of Civil Engineers.