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近两年来,我省公路部门学习国内外环氧树脂修补混凝土结构缺陷的经验,推广使用环氧胶浆灌注裂缝,环氧砂浆或环氧混凝土修补桥梁破损部分。对开裂比较严重的无筋双曲拱和肋板拱桥,除裂缝灌浆外,还有试用环氧胶浆粘贴玻璃布(形成玻璃钢)或用环氧胶泥(胶浆渗水泥填料)粘贴钢板补强拱肋受拉面的加固方法。经过一段时间的考验发现:由于混凝土结构强度不够而引起开裂的,单用环氧胶浆灌缝,在旧缝附近又
In the past two years, our province’s highway departments to learn the domestic and foreign epoxy resin repair defects in the structure of concrete defects, the promotion of the use of epoxy mortar perfusion cracks, epoxy mortar or epoxy concrete repair part of the damaged bridge. In the case of non-tendon double-arch and ribbed arch bridges with more severe cracking, in addition to crack grouting, a test epoxy mortar is used to attach glass cloth (to form FRP) or epoxy cement paste Arch rib by the reinforcement method. After a period of tests found that: due to inadequate strength of the concrete structure caused by cracking, single epoxy glue filling, in the vicinity of the old seam