RAW MIX Russian patent published in 2009 - IPC C04B9/00 

FIELD: construction.

SUBSTANCE: invention is related to composition of raw mix for preparation of decorative mortar and may find application for finishing of internal walls, and also for walls of balconies, porches, walls of basement premises, i.e. walls with relative humidity of 60-80%. Raw mix for preparation of decorative mortar includes binder - magnesium oxide as caustic magnesite with specific surface of 3000 cm²/g, microfiller - ceramic brick from red-burning clay or light-burning clay baked at temperature of 950-1000°C, with specific surface of 3000 cm²/g, fine-grained iron-containing filler - deposit from filters of fresh water treatment with fraction of up to 0.315 mm and mentioned deposit baked at temperature of 600°C, at the following ratio of components, wt %: specified caustic magnesite 17-24, mentioned microfiller 28-33, specified deposit 3-48, specified baked deposit 2-10.

EFFECT: higher adhesion of mortar to concrete surface and coarse ceramics, elimination of blooms.

6 ex, 2 tbl