As an important functional admixture for building materials, PVA significantly improves the adhesion, water retention, and crack resistance of mortar. Of course, in order to achieve the perfect application of building materials, a combination of various additives is needed, such as air entraining agents, early strength agents, retarders, waterproofing agents, and water reducing agents, as well as currently popular polycarboxylate superplasticizer on the market.