As we all know, the main component of gypsum is calcium sulfate, which can be used for cement retarder, gypsum construction products, model manufacturing, food additives, sulfuric acid production, paper fillers, paint fillers, etc., which is still a widely used industrial data and construction data at that time。Gypsum condensation hardening is the crystallization process of gypsum after absorbing crystal water, which reflects the effect and effect of gypsum. Its volume will not only not shorten, but also expand slightly. This expansion will not cause damage to gypsum, but also make the appearance of gypsum more lubricated and plump, with clear edges。

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　　1, fine (fineness) : The details represent the fine degree of gypsum powder, the details of the special hard white stone paste are usually 1100 mesh, and the details of the construction gypsum are about 300 mesh, so we can see a lot of gaps。
　　2, compressive strength: compressive strength refers to the size of the external force to crush the plaster, and the 3-hour compressive strength of the white stone paste for art is 8.1 millipa, the 3-hour compressive strength of construction gypsum is about 4.9毫帕。
　　3, flexural strength: flexural strength represents the unit area of the data to accept the bending moment of the breaking force。The drying bending strength of gypsum for art is about 10 to 12 millikpa, and that of gypsum for construction is 8.4 milipas of mercy。
　　4, the choice of bonding strength, gypsum powder is widely used, gypsum powder can be used as a gypsum board;Gypsum block;Painting plaster;Putty powder;Fast drying powder;Gypsum line and other construction goods of the original information。Such as making tofu to use gypsum: the famous Chinese medicine "white tiger soup", gypsum is the main medicine, acute high fever, thirst and irritability have excellent effects;Dentists make plaster models of gums;Surgeons use casts to immobilize patients。
　　That's all aboutHeilongjiang gypsum powderThe role of gypsum powder and the relevant introduction of the selection of skills, we can use as a reference according to their own needs to choose!