FIELD: chemistry.
SUBSTANCE: invention relates to a gypsum mixture and can be used in the construction industry to make various articles, for example blocks and slabs. The gypsum mixture contains the following in wt %: gypsum hemihydrate 28-30, slaked lime 1.2-1.5, portland cement 0.3-0.5, quartz sand with grain size of up to 0.8 mm 41.97-47.95, water 20-23, zinc sulphate 0.03-0.05, mullite-silica wool 2.5-3.
EFFECT: high strength.
1 tbl
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