CHARGE FOR BRICK MAKING Russian patent published in 2002 - IPC

FIELD: building industry. SUBSTANCE: invention relates to a charge used for making brick of any form, sizes, with internal holes or without of them. Charge comprises, wt. %: ash from central heating and power plant, crushed brick or ground damping slag, 0.5-10.0; sawdust and/or coal with particle size 5 mm, not above, 0.5-15.0; granulated furnace slag, 0.1-6.9; clay and/or loam, the balance. Furnace slag and/or steel making manufacture slag can be used as crushed damping slag. Produced brick shows the compression strength limit value up to 32 MPa, bending strength value up to 50 MPa, resistance to cold is 25 cycles, not less. EFFECT: high bending strength value, utilization of industrial waste products. 2 cl, 2 tbl