Tensile behavior of basalt textile grid reinforced Engineering Cementitious Composite
作者： Benben Li , Haibei Xiong , Jiafei Jiang , Xiangxiang Dou
DOI: 10.1016/J.COMPOSITESB.2018.08.059
关键词:
摘要: Abstract To overcome the shortness of organic bonding in fiber-reinforced polymer (FRP) retrofitting, textile-reinforced mortar (TRM) has been studied as an alternative composite for retrofitting structural concrete. However, brittleness brings conflict between efficient using FRP and durability performance TRM. solve this problem, Engineering Cementitious Composite (ECC) can potentially be used to replace TRM, due its “ductile” property. The new is named TR-ECC. In paper, tensile failure mechanism mechanical properties TR-ECC composite, which was composed basalt textile grids one kind ECC, Ultra High Ductility (UHDCC) matrix, investigated. uniaxial tests on 24 TR-ECC specimens (eight groups) were carried out. variables include thickness UHDCC per layer, grid geometry configuration volumetric ratio grids. influence pattern, initial elastic hardening modulus, crack stress, ultimate strain stress analyzed. Finally, stress-strain behavior strength compared with that traditional test comparison results show ECC largely improve reinforcement effect than well control cracking width.
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