Building cement plaster powder

The main production processes gypsum is heated and ground. Because of different heating temperature and the way to produce different types of gypsum. (L) building gypsum building plaster is a natural H gypsum and other raw materials calcined gypsum mature at a temperature of 17 ℃ ~ 17 ℃, and then by ground from the white powder. The main components of b-hemihydrate gypsum. After building gypsum has good acoustic insulation properties and good fire performance hygroscopic; color white, can be used for interior painting and construction, particularly suitable for the production of. Smooth and delicate white floral decoration, such as pigments make products with a variety of colors. Gypsum is not suitable for outdoor projects and more than 65 ℃ high temperature engineering. In short, building plaster can be used for interior painting, production of decorative products, porous gypsum products and gypsum board. (2) model calcined gypsum plaster gypsum generated, if one low impurity content, SKI whiter grinding finer called model gypsum. It condenses faster than building gypsum, high strength. Mainly for the production model, sculpture, decorative floral and so on. (3) High-strength gypsum plaster on the H water pressure inside the steamer, steam generated in refining l.3 atmospheric pressure (124 ℃) under. a-hemihydrate gypsum, after the ground is high intensity. This plaster after hardening has a higher density and strength. High-strength gypsum suitable for high strength requirements of plaster works, decorative products and plasterboard. After the incorporation of waterproofing agent, and its products can be used in high humidity environments. It can also be added to the organic solution dubbed binder use. (4) anhydrite cement natural gypsum is heated to 4 ℃ ~ 75 ℃, gypsum will be completely lose moisture and become insoluble anhydrite, it is mixed with an appropriate amount of activator after ground was dry gypsum cement. Anhydrite cement suitable for indoor use, mainly for the production of gypsum board or other products, can be used as interior plaster. (5) floor natural gypsum plaster if more than 8 ℃ firing, so that part of the decomposition of calcium sulfate, calcium oxide, ground temperature after the product is called calcined gypsum, also known as gypsum floor. After hardening plaster floor has high strength and wear resistance, water resistance good, so is mainly used plaster floors for indoor surface decoration.