The cellulose ether currently used in dry mortar is mainly calcium formate, and the physical properties of calcium formate are stable at room temperature and are not suitable for agglomeration, so it is more suitable for use in mortar. Types of dry mixed mortar admixtures And its function: Compared with the admixtures for on-site mixing of mortar, dry-mixed mortar admixtures have the following characteristics: ① It does not contain water and is generally solid; ② When mixed with cement, sand and other admixtures, it does not react in the dry state. After adding water, it can be fully dispersed and play its role efficiently. Dry-mixed mortar admixtures mainly include redispersible polymer powder, water-retaining thickener, water-reducing agent, coagulant, waterproofing agent, fiber, defoaming agent, etc. [ 1]. Among them, cellulose ether and redispersible polymer powder are the two most commonly used additives in dry-mixed mortar that have been developed in recent years and have very significant effects. You can refer to some books for more details, but between now Patented technology, maybe you can also find your own answer~