RAW MIXTURE FOR COMPRESSED GYPSUM PRODUCTS AND METHOD OF MANUFACTURING THEREOF Russian patent published in 2023 - IPC C04B28/14 C04B111/20 B28B5/00 

FIELD: construction materials.

SUBSTANCE: group of inventions relates to the field of production of building materials and can be used in the production of gypsum products. Raw mixture for pressed gypsum products contains, wt.%: gypsum binder obtained by firing of citrogypsum at a temperature of 175°C, 64-72, filler - citrogypsum with a particle size of not more than 112 mcm, 8-16, water - the rest. A method for manufacturing pressed gypsum products from the above mixture includes mixing citrogypsum with a gypsum binder, introducing the resulting raw mixture into water, mixing, molding in a metal mold under a pressure of 5-7 MPa with holding at the specified pressure for 30 s, pressing out and drying the products in natural conditions to permanent weight.

EFFECT: technical result is an increase in the strength of products, reduced consumption of a binder, lower energy costs for pressing and reduced equipment wear.

2 cl, 2 tbl, 1 ex