FIELD: manufacturing technology.
SUBSTANCE: present invention relates to gypsum compositions for making gypsum boards. Raw mixture for production of gypsum boards, including gypsum, water, technical lignosulphonate with water-gypsum ratio of 0.5–0.6, additionally contains synthetic latex, sulfur, zinc oxide, dibenzothiazolyl disulphide at the following components ratio,%: synthetic latex is 1–5, technical lignosulphonate 1–5, technical lignosulphonate 0.1–0.2, stechnical impurity 3–15, dibenzothiazolyl disulphide 1.5–3, zinc dioxide 3–5, G6 gypsum is the rest.
EFFECT: high strength and low water absorption of gypsum boards.
1 cl, 2 tbl
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