本文针对粘结干粉砂浆的性能要求,选择具有保水增稠作用的甲基纤维素醚及可再分散乳胶粉,首先进行探索性试验,确定其外加剂的掺量。在得到外加剂最优配方的基础上,然后在不改变砂浆基本性能的前提下掺加减水剂、粉煤灰、矿粉、重质碳酸钙等进行探索性的研究以此达到性能最优,成本最低的配合比。 In this paper, the performance requirements of bonded dry mortar, the choice of water-thickening of the role of methyl cellulose ether and redispersible polymer powder, the first exploratory test to determine the amount of admixture. On the basis of obtaining the optimal formulation of the admixture, the optimal performance is then optimized by adding a water-reducing admixture, fly ash, slag, heavy calcium carbonate and the like under the premise of not changing the basic performance of the mortar , The lowest cost of the mix.