METHOD OF BUILDING PIECES PRODUCTION AND RAW MATERIAL CERAMIC MASS FOR BUILDING PIECES PRODUCTION

摘要

FIELD: building materials production, method is used in process of bricks, ceramic stones, tiles, large size blocks production. SUBSTANCE: ceramic mas is prepared by mixing of clay, filler - sand, calcium hydroxide, for example in the form of slake lime and tempering of hardening activator by water solution. Pieces are moulded, for example by plastic method and then are subjected to thermal treatment. Thermal treatment has stages of preliminary drying, thermal humid treatment in atmosphere of saturated steam and following drying with slow decrease of humidity. In the case preliminary drying is exercised till humidity of 12 - 14 % under temperature of 60 - 70 C, thermal humid treatment is exercised under temperature of 95 - 100 C for 2 - 4 hours and following drying is exercised for 8 - 10 hours in process of slow temperature rise up to 120 - 130 C and holding under the temperature. Concentration of dry components in raw material ceramic mass is in following limits (mass %): filler - sand 0.1 - 50.0; calcium hydroxide 4.5 - 20.0; hardening activator 0.3 - 4.0; clay - balance. EFFECT: method allows to improve process of bricks, ceramic stones, tiles and large size blocks production. 2 cl, 1 tbl