Effects of hygrothermal conditioning on epoxy adhesives used in FRP composites

被引：84
作者：
Blackburn, B. Paige [1 ]
Tatar, Jovan [1 ]
Douglas, Elliot P. [1 ]
Hamilton, H. R. [1 ]
机构：
[1] Univ Florida, Dept Civil & Coastal Engn, Gainesville, FL 32611 USA
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2015年 / 96卷
关键词：
FRP; Epoxy; Concrete; Bond; Durability; Hygrothermal; Cohesive; Adhesive; Accelerated aging; GLASS-TRANSITION; STRENGTH; WATER;
D O I：
10.1016/j.conbuildmat.2015.08.056
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Durability of FRP composites and their bond to concrete is essential to structural integrity of an FRP repair. Epoxy adhesives are used to form FRP composites, and as a bonding medium between the FRP and concrete substrate. Susceptibility of epoxy to the negative effects of water and high temperature affects the longevity of FRP repairs in hygrothermal environmental conditions. The presented work investigates the effects of such environments on the curing kinetics of epoxy. Competing effects of plasticization and post-cure during accelerated conditioning are discussed; recommendations targeting researchers, practitioners, and manufacturers are made based on the research findings. (C) 2015 Elsevier Ltd. All rights reserved.
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收藏
页码：679 / 689
页数：11
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