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对水泥混凝土路面薄层修补材料水泥-乳化沥青-环氧乳液复合胶浆(CAE)的收缩性能、抗渗性能和抗化学侵蚀性能进行了研究,并通过FTIR(红外光谱)和SEM对CAE复合胶浆的硬化机理进行了分析。结果表明:相比普通水泥砂浆,CAE干缩率明显降低,抗渗性由普通1.3 MPa发生渗透提高到1.5 MPa,并且CAE抗酸侵蚀质量损失率较水泥乳化沥青砂浆降低了34%,乳化沥青和环氧乳液固化后形成相互交织的互穿网络,很好地改善了CAE复合胶浆材料的孔隙结构,提高了CAE的耐久性。
The shrinkage, impermeability and chemical resistance of cement-emulsified asphalt-epoxy emulsion composite mortar (CAE), which is a thin layer repairing material for cement concrete pavement, were studied. The CAE was compounded by FTIR and SEM The hardening mechanism of mortar was analyzed. The results showed that the dry shrinkage rate of CAE was obviously lower than ordinary cement mortar, the impermeability increased from 1.3 MPa to 1.5 MPa, and the loss rate of CAE was 34% lower than that of cement mortar. The emulsified asphalt And epoxy emulsion solidified to form intertwined interpenetrating network, which improved the pore structure of CAE composite cement and improved the durability of CAE.