METHOD OF PREPARING DRY MORTAR MIX Russian patent published in 2001 - IPC

FIELD: in-situ concreting and finishing of building structures. SUBSTANCE: method comprises mixing cement, sand and polymeric additive prepared from aqueous polymer dispersion, premixing sand and aqueous polyvinyl acetate dispersion, and the resulting mixture is then dried at 40-60 C for 2-4 hours and subsequently finely dividing said mixtures to dispersed state, cement is added at cement to sand ratio of 1:2.2-1:2.5, stirred till homogeneous state is formed, and packed. EFFECT: dry mixes for masonry mortars. 3 dwg, 1 tbl