粉煤灰防水涂料制备研究

 以攀枝花某电厂粉煤灰为原料，经活化后制备水泥基粉煤灰防水涂料。研究了粉煤灰掺比、水胶比、砂灰比等操作参数对防水性能和抗压强度的影响；采用正交试验设计方法，用极差分析法和方差分析法对实验数据进行处理来确定制备的最佳工艺参数。结果表明，粉煤灰掺比0.8、水胶比0.38、砂灰比0.2，制备出的水泥基粉煤灰防水涂料有很好的防水效果，5h吸水率为2.38%，抗压强度可达36MPa。结果可为粉煤灰的综合利用提供新的途径。

Study on Preparation of Fly Ash Water Proof Coating

This paper takes the fly ash of Panzhihua Power Plant as raw material, preparation of activated fly ash cement-based waterproof coating. Mixed ratio of fly ash, water-cement ratio, sand cement ratio of the specimen at different times of water absorption and compressive strength were researched. According to orthogonal table experiment theory, the experiment data were analysed in variance and ranged to obtain the optimal techniques parameters. The experimental results showed that fly ash has a good waterproof coating waterproofing effect, The optimal techniques parameters:the cement-based waterproof coating fly ash is mixed with the best ratio of 0.8, 0.38 water-cement ratio, sand cement ratio 0.2, 5h water absorption is only 2.38% and compressive strength could be up to 36.MPa, thus provided a new way for comprehensive utilization of fly ash.