Gypsum is an important raw material for industrial reducing carbon emissions. It has the functions of light quality, insulation and heat insulation, fire prevention, and can be used as a cement slowing agent, preparing gypsum self -flowing mortar, and plaster gypsum mortar. Lightweight plaster gypsum mortar is a type of plaster gypsum mortar. It is often used as a substrate material, and it is prepared by incorporating fillers, lightweight aggregate, and additives.