Ceramic Facing Tiles Based on Local Polymineral Clays

It is demonstrated that after polymineral clays from the Republic of Tatarstan are treated by various methods improving the quality of clay materials (diluting mixture with activated water, treating mixture in an electric classifier, introducing technological additives, such as mechanoactivated quartz-glauconite sand or phosphoric and high-melting clay) can be used in semidry molding combined with slip preparation of molding powder to produce tiles for interior and exterior facing satisfying standard requirements.