DECORATIVE FACING BUILDING STONE Russian patent published in 1999 - IPC

FIELD: manufacture of building materials; applicable in decorative facing and lining of buildings and structures, and in finishing of various interiors surfaces. SUBSTANCE: decorative facing building stone is made of decorative finishing layer containing hydraulic binder, filler, pigment and clay or lime-sand brick in capacity of building material. Thickness of decorative finishing layer and brick thickness relates as 1:10 to 1:20. Initial rate of water absorption by brick shall not be less than 8 and not more than 30 g/sq.dm per minute. Stome features frost resistance of 200 cycles, waterproofness 8, high crack resistance and strength. EFFECT: prolonged storage life, higher reliability, increased atmospheric durability, frost resistance, reduced water absorption and reduced cost price.