DRY MORTAR MIX Russian patent published in 2003 - IPC

FIELD: manufacture of building materials. SUBSTANCE: invention relates to dry mortar mixes for laying facing ceramic and glass slabs, ceramic flooring tiles, fiber boards, polystyrene foam boards, cellular concrete blocks on solid concrete blocks, brick, cement-sand, and other types of surfaces. Mix contains 25-35% of binding component, 55-74% of filler, and 1.0-10.0% of modifying additive composed of microsilica, plasticizer, dolomite or limestone flower and, additionally, 0.05-0.5% water-soluble cellulose ether and 0.1-5.0% redispersed powder in the form of vinyl acetate or acrylate copolymers. Filler is composed of quartz sand (99.9-85.0%) and dusty quartz (0.10-15.0%). Binding component may be represented by various-type Portland cement, puzzolan cement, slag-Portland cement, and complex cement-lime and lime-cement binders. EFFECT: improved laying characteristics and expanded process possibilities simultaneously with simplification of laying operations. 2 tbl