Experimental comparison of reinforced concrete beams strengthened against bending with different types of cementitious-matrix composite materials

被引：88
作者：
Escrig, Christian [1 ]
Gil, Lluis [1 ]
Bernat-Maso, Ernest [1 ]
机构：
[1] Univ Politecn Cataluna, Dept Strength Mat & Struct Engn, Colom 11, Terrassa 08222, Spain
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2017年 / 137卷
关键词：
FRCM; Concrete; Bending; Strengthening; Experimental; Ductility; Stiffness; Cracking; RC BEAMS; FRCM MATERIALS; BOND BEHAVIOR; TEXTILE; MORTAR; TRC;
D O I：
10.1016/j.conbuildmat.2017.01.106
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Fabric-reinforced cementitious matrix (FRCM) materials overcome some hazard limitations of organic resins and are becoming a competitive technology on retrofitting reinforced concrete structures. In this work, five types of FRCM applied as flexural reinforcements are compared. The results show that there is a correlation between the strengthening materials and the cracking patterns developed by the tested beams. Further, FRCM contributed to an increase the flexural capacity and flexural stiffness of the strengthened beams, but their ductility decreased. Finally, a new methodology to study the cracking process is presented. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：317 / 329
页数：13
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