PLASTER GYPSUM DRY CONSTRUCTION MIXTURE Russian patent published in 2012 - IPC C04B28/14 C04B111/27 

FIELD: chemistry.

SUBSTANCE: invention relates to the industry of construction materials and can be used in production of plaster gypsum dry construction mixtures for interior finishing of buildings for different purposes, including high-humidity facilities. The plaster gypsum dry construction mixture contains the following, wt %: gypsum plaster 75.95 - 88.44, construction lime 3-5, ceramsite dust 5 - 20, polyethylene oxide 1.0 -1.5, citric acid 0.039 - 0.041, starch ether 0.011 - 0.02.

EFFECT: high adhesion strength and water resistance of the plaster gypsum mixtures, wider raw material base owing to use of local mineral material and wastes without deterioration of consumer properties.

3 tbl