Modified geopolymer grouting material and preparation method thereof

The invention discloses a modified geopolymer grouting material and a preparation method thereof. The geopolymer grouting material is prepared from slag powder, fly ash, concrete micro powder, a water glass solution, sodium hydroxide, a water reducing agent, an expanding agent, a retarder, a defoaming agent and a waterproof agent according to a certain proportion. According to the geopolymer grouting material, the solid waste slag powder, the coal ash and the concrete micro powder serve as main raw materials, the cost is reduced while solid waste resources are recycled, and the modified geopolymer grouting material has the advantages of being good in fluidity, high in strength, small in shrinkage and good in durability. 本发明公开了一种改性地聚合物注浆料及其制备方法，它是由矿渣粉、粉煤灰、混凝土微粉、水玻璃溶液、氢氧化钠、减水剂、膨胀剂、缓凝剂、消泡剂、防水剂按照一定比例制备成地聚合物注浆料。本发明中的地聚合物注浆料以固体废弃物矿渣粉、粉煤灰、混凝土微粉为主要原料，循环利用固废资源的同时降低了成本，该种改性地聚合物注浆料具有流动性好、强度高、收缩小且耐久性能好的特点。