发泡造孔法制备粉煤灰基多孔地质聚合物

Preparation of Fly Ash-Based Porous Geopolymer by Foaming Pore-Making Method

摘要: 本文以粉煤灰为原料，采用发泡法和添加造孔剂法相结合的方法制备具有特殊孔结构的地质聚合物多孔样品。探究搅拌时间对材料集水性能和孔径的影响。结果表明，当搅拌时间为20 s时集水效果最好，此时样品的显气孔率为79.68%，饱和吸水率为176.75%，平均孔径为1.25 mm。

Abstract: In this paper, the porous sample of geopolymer with special pore structure is prepared by foaming method and pore-forming agent method using fly ash as raw material. The influence of stirring time on water collecting performance and pore size is investigated. The results show that the water collection effect is the best when the stirring time is 20 seconds. At this time, the apparent porosity of the sample is 79.68%, the saturated water absorption is 176.75%, and the average pore size is 1.25 mm.