METHOD FOR PRODUCING DECORATIVE HIGH-STRENGTH WATERPROOF FROST-RESISTANT FACADE TILES Russian patent published in 2023 - IPC B28B1/87 B28B19/00 B28B5/00 C04B28/00 C04B18/02 

FIELD: building materials.

SUBSTANCE: invention relates to the production of building materials and can be used to obtain protective and decorative coatings on the surfaces of building concrete, reinforced concrete and metal structures manually and mechanized. The method for producing facade tiles consists in pre-lubricating the mold surface with gear oil with kinematic viscosity at a temperature of 20°C, equal to 100-200 mm²/s. Then mica particles with a fraction size of 0.1-30 mm are evenly distributed over the lubricated surface of the mold in one layer with a thickness of 0.1-2 mm. After that, the form is installed on the vibrating table and filled with concrete mixture with simultaneous implementation of the vibration process with a vibration amplitude of 0.2-0.4 mm and a frequency of 50 Hz, containing. At the same time, the concrete mixture includes 22.7-32.4 wt.% of cement, 60.2-68.2 wt.% of granite screenings with a fraction size of 0.05-10 mm, 0.34-0.49 wt.% of plasticizing additives, water - the rest. After that, the mixture is left to dry completely in the air.

EFFECT: increase in frost resistance, water tightness, durability of a tile.

2 cl, 3 tbl, 3 dwg