METHOD FOR MANUFACTURE OF FACING BRICKS Russian patent published in 1996 - IPC

FIELD: manufacture of facing bricks. SUBSTANCE: method for manufacture of facing bricks includes combined wet milling of broken glass in the amount of 20 mas. % and 15 mas.% of electrothermophosphoric production slag with 32.5 mas.% of low-grade sandy clay and 32.5 mas.% of soft high-grade clay to obtain milling fineness - residue of screen 0.355 of not in excess of 4%, dewatering in spray drier to 4-8% moisture content; molding of blanks and calcination at 980 C. Mechanical and physical properties of bricks: compression strength 35 MPa, water absorption 7-8%; frost resistance 40 cycles. EFFECT: higher efficiency. 1 tbl