FIELD: building materials.
SUBSTANCE: invention relates, at least partially, to the use of raw starch with a required viscosity in different gypsum suspensions, plates, methods and products. Gypsum board contains a core of hardened gypsum located between two covering sheets, wherein the specified core is formed of a suspension containing plaster gypsum, water and at least one raw starch with a viscosity in hot water from 20 Brabender units to 300 Brabender units, when measuring a viscosity by HWVA method at 92°C. A method for manufacturing gypsum board is also described.
EFFECT: obtaining gypsum products based on raw starch.
10 cl, 6 dwg, 16 tbl, 9 ex
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