粉煤灰加入对水泥基泡沫保温板性能的影响

Influence of fly ash on properties of cement based foam insulation board

为了回收再利用工业废弃物粉煤灰和降低水泥基泡沫保温板的生产成本,以普通PO 42.5号硅酸盐水泥为主要胶凝材料,加入8%的硫铝酸盐水泥为促凝剂,外加7%的双氧水作为发泡剂,水灰比为0.5,以粉煤灰替代硅酸盐水泥(替代量分别为0、10%、20%、30%、40%)制备了水泥基泡沫保温板。研究了粉煤灰加入量对泡沫保温板的物理性能、力学性能和保温性能的影响。研究结果表明:粉煤灰加入量为20%时,泡沫保温板综合性能最佳,并且还可以提高材料的耐用性。

In order to recycle industrial waste fly ash and reduce the production cost of cement based foam insulation board,with ordinary PO 42.5 Portland cement as the main gel material,add 8%sulfur aluminate cement as procoagulant,plus 7%hydrogen peroxide as foaming agent,water ash ratio of 0.5,with fly cement instead of Portland cement(replacement of 0,10%,20%,30%,30%,40%)prepared cement based foam insulation board.The influence of fly ash incorporation on the physical,mechanical and thermal properties of foam insulation plate is studied.The results show that when the fly ash incorporation is 20%,the foam insulation board is the best comprehensive performance,and can also improve the durability of the material.