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   袁迎曙  蔡    躍     （中國(guó)礦業(yè)大學(xué) 徐州 221008） 

   黃振安  李少冰     （淮南礦務(wù)集團(tuán) 淮南 232001）

[提要]  在工業(yè)環(huán)境下鋼筋混凝土板受到嚴(yán)重侵蝕，可采用結(jié)構(gòu)膠泥找平后粘覆鋼板進(jìn)行加固。結(jié)構(gòu)膠泥的材料試驗(yàn)表明，該膠泥具有和鋼板與本體混凝土粘結(jié)強(qiáng)度高、耐腐蝕性強(qiáng)、早強(qiáng)、高強(qiáng)等特點(diǎn)。通過(guò)對(duì)混凝土板的加固修復(fù)試驗(yàn)研究可知，修復(fù)材料能抵抗早期約束收縮引起的拉應(yīng)力，鋼板與原混凝土板的協(xié)同工作性能良好，保證了鋼板在加固板中充分發(fā)揮其強(qiáng)度的作用。本技術(shù)在工程應(yīng)用中取得了良好的效果。
[關(guān)鍵詞]  結(jié)構(gòu)膠泥 鋼板 混凝土板 結(jié)構(gòu)性能

Reinforced concrete slab is seriously corroded in some industrial environment. Tests of concrete slab strengthened by steel plate with epoxy mortar leveling, adhesing and corering for structural behavior and tests of modified epoxy mortar for material behavior are camed out. The material test results show that the epoxy mortar has high bond strength between concrete and steel, high corrosion resistance, high strength in early age. The structural test results show that repair epoxy mortar can resist restrained shrinkage and the compatibility between concrete slab and steel plate is excellent.
Keywords:  modified epoxy mortar; steel plate; concrete slab; structural behavior