Textile-to-mortar bond behavior: An analytical study

被引：13

作者：

Dalalbashi, Ali ^{[1
]}

Ghiassi, Bahman ^{[2
]}

Oliveira, Daniel, V ^{[1
]}

机构：

[1] Univ Minho, Dept Civil Engn, ISISE, Guimaraes, Portugal

[2] Univ Nottingham, Fac Engn, Ctr Struct Engn & Informat, Nottingham, England

来源：

CONSTRUCTION AND BUILDING MATERIALS | 2021年 / 282卷

关键词：

Textile reinforced mortar; Pull-out test; Analytical modeling; Fiber/matrix bond; Bond-slip law; PULL-OUT; FIBER PULLOUT; INTERFACE; SLIP; COMPOSITES; STRENGTH; LIME; INPLANE;

D O I：

10.1016/j.conbuildmat.2021.122639

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Reliable design and application of textile-reinforced mortar (TRM) composites for the repair of existing masonry and concrete structures requires a fundamental understanding of the textile-to-mortar bond behavior as one of the main mechanisms controlling their nonlinear response and cracking behavior. Suitable test setups and analytical models are needed to extract the bond-slip laws from the experimental pull-out tests. This paper proposes a new bond-slip law and analytical model, which predicts the bond behavior of lime and cement-based TRM composites considering the slip hardening and softening effects observed in experimental tests. For this purpose, the pull-out response of experimental specimens with different fiber types (steel and glass), bond lengths, and mortar age are analyzed, and their bond slip-laws are extracted. The accuracy of the developed model is shown by comparing analytical and experimental results. (C) 2021 Elsevier Ltd. All rights reserved.

引用

页数：14

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