混凝土添加剂对丙烯酸盐喷膜防水材料性能的影响

Influence of concrete additives on performance of acrylate spraying film waterproof material

通过对含不同添加剂的混凝土试块在静态水环境和动态水环境中浸泡后溶液pH值变化、防水膜材料在试块浸泡后的溶液中的质量变化和力学性能测试,以溶液pH值、防水膜的相对质量和拉伸强度变化为研究指标,分析不同混凝土添加剂及不同添加量在使用过程对丙烯酸盐防水膜的影响。结果表明,减水剂和速凝剂对防水膜有一定程度的不良影响,使用中添加量要严格控制,其它添加剂对防水膜影响不太明显。

In static and dynamic water environment,the pH value of solution soaked by concrete test block containing different additives changes,the mass of waterproof film material in test block soaked solution changes and the mechanical property is tested. Taking the solution pH value, the relative mass and the tensile strength change of waterproof film as indices for study, analyze the influence of different concrete additives and different adding amount on the acrylate waterproof film in the course of utilization. The results indicate that the water reducing agent and accelerating agent have certain adverse effect on waterproof film,the adding amount in use must be controlled strictly,the influence of other additives on the waterproof film is not obvious.