FIELD: chemistry.
SUBSTANCE: invention relates to obtaining gypsum construction boards. The method of obtaining a gypsum construction board consists in the following: a crest-like copolymer fluidising substance and a water-soluble basic polymer, possessing the preferential affinity for clay, are added to an aqueous gypsum suspension, containing clay swelling in water, the suspension is allowed to harden in such a way that a board is formed, and the water-soluble basic polymer consists mainly of carbon, nitrogen and hydrogen and a halogenide ion and has amino groups (which can be primary, secondary, tertiary or quaternary) in the polymer skeleton and/or on its side chains.
EFFECT: production of gypsum construction boards.
7 cl, 3 dwg, 2 tbl
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