FIELD: construction.
SUBSTANCE: invention is related to dry building mixtures for manufacturing of plaster. Dry mortar contains, in wt.%: gypsum 34.401-55, ceramic sand obtained by firing in the temperature range 600-800° C, 39.401-60, hardening retarder - citric acid 0.039-0.099, thickener - starch ester 0.021-0.2, water-retaining additive - cellulose ether 0.1-0.3, plasticizer - dry polyvinyl acetate 0.1-5.
EFFECT: increase in heat-insulating and sound-proofing properties.
1 cl
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