FIELD: chemistry.
SUBSTANCE: claimed group of inventions relate to highly strong flooring compositions. Mixture for application in combination with water with obtaining suspension, which hydrates with formation of highly strong flooring composition contains: from approximately 50 wt % to approximately 98 wt % of calcium sulfate hemihydrates, from approximately 0.002 wt % to approximately 1 wt % of polysaccharide and from approximately 0.02 wt % to approximately 2.5 wt % of lignin or lignosulfonate. Suspension contains water and sand, mixed with said mixture. Sand is present in weight ratio, constituting, at least, approximately 2.5:1 (in units ft3 of sand: 80 pounds of dry mixture).
EFFECT: increased content of sand suspensions and respectively increased strength of flooring.
8 cl, 4 tbl
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