FRP加固修复混凝土用粘结材料的研究(1)底层涂料  

Study of Adhesives Used for FRP Strengthened and Repaired Concrete(Part 1---Priming Coat)

作　　者：李永德[1] 朱明[1] 

机构地区：[1]清华大学土木系,北京100084

出　　处：《化学建材》2001年第3期30-32,42,共4页Chemical Materials for Construction

摘　　要：FRP加固修复混凝土用粘结材料包括底层涂料、整平腻子和浸渍树脂。底层涂料要求低粘度 ,高浸润性。本实验中介绍了通过不同稀释剂改性环氧树脂后粘度和粘结强度的变化 ,同时针对剪切强度低的现象加入了增韧剂进行了改性后发现 ,不仅环氧树脂粘度高的问题得到了解决 ,固化体系的剪切强度也有了大幅度的提高。Adhesives used for FRP strengthened and repaired concrete comprises priming coating,troweling putty and impregnating resin. Priming coating demands low viscosity and high saturation. In the experiments viscosity and adhesive strength variation after epoxy resin was modified with different thinners was introduced. In the mean time, it was found after toughening agent was added for modification in view of low shear strength that not only the viscosity of epoxy resin was low enough for operation, but shear strengh of the curing system was also greatly improved.

关 键 词：FRP 结构加固 粘结材料 底层涂料 增韧剂 混凝土结构 

分 类 号：TU37[建筑科学—结构工程] TU58