METHOD OF PREPARING GYPSUM MORTAR WITH MODIFIERS AND PLASTICISERS Russian patent published in 2011 - IPC C04B28/14 E04F13/02 B32B13/08 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of preparing gypsum mortar, a method of making a gypsum article using the said mortar and a gypsum article made from said mortar. The invention can be used in the building industry. The method of preparing gypsum mortar involves obtaining a certain amount of dry components containing gypsum plaster; preliminary dissolution of the modifier and plasticiser in water to obtain a solution, where the modifier is selected from a group comprising potassium phosphonate and carbonate; and mixing the said solution with the dry components. The method of making the gypsum article involves preparation of gypsum mortar using the method described above, moulding the said gypsum mortar into the article and solidification of the liquid gypsum mortar. The article is obtained using the method described above. The invention is developed in subclaims.

EFFECT: high fluidity of the mortar while reducing content of plasticiser, shorter setting time.

21 cl, 3 ex, 3 tbl