FIELD: construction.
SUBSTANCE: method to produce a composite loose gypsum material, by means of grinding of a gypsum component, its baking and dry mixing of components. Natural gypsum stone is used as a gypsum component. The modifying additive is peat powder, which is introduced into natural gypsum stone before grinding or before baking in the following amount, wt %: natural gypsum - 90-99.5, peat powder - 0.5-10. Baking is carried out at temperature of 150÷200°C for 60÷180 minutes. Peat powder is introduced into gypsum powder.
EFFECT: higher stability of physical-chemical characteristics of a material produced by the proposed manner, during long-term storage, no negative impact at environment.
2 cl, 1 tbl, 5 ex
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