RAW MIXTURE FOR COMPRESSED GYPSUM PRODUCTS AND METHOD OF MANUFACTURING THEREOF Russian patent published in 2023 - IPC C04B28/14 C04B38/10 C04B111/20 B28B5/00 

Abstract RU 2793098 C1

FIELD: construction materials.

SUBSTANCE: group of inventions relates to the field of production of building materials and can be used in production of gypsum products. Raw mixture for pressed gypsum products contains, in % by weight: gypsum binder obtained by firing of citrogypsum at a temperature of 175°C, 58-72, filler - citrogypsum with a particle size of not more than 112 mcm, 8-25, the rest is 1% aqueous solution of Penostrom foam agent. A method for manufacturing pressed gypsum products from the above mixture includes mixing citrogypsum with a gypsum binder, introducing the resulting raw mixture into the 1% aqueous solution of foam agent, mixing, moulding in a metal mould under a pressure of 3-5 MPa with holding at the specified pressure for 30 s, pressing out and drying the products in natural conditions to permanent weight.

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

2 cl, 3 tbl, 1 ex

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RU 2 793 098 C1

Authors

Alfimova Nataliia Ivanovna

Elistratkin Mikhail Iurevich

Pirieva Sevda Iunisovna

Titenko Aleksei Anatolevich

Nikulin Ivan Sergeevich

Levitskaia Kseniia Mikhailovna

Voropaev Valerii Sergeevich

Dates

2023-03-29Published

2022-09-27Filed