RAW MATERIAL MIXTURE FOR MANUFACTURING THERMAL STABLE CONCRETE Russian patent published in 1994 - IPC

FIELD: building materials production. SUBSTANCE: raw material mixture contains, mass % : phosphate binder 8-12, kaolin 8-12, waste aluminium-chromium catalyst of isoprene production 6-10, chamotte the rest. Above mentioned catalyst is crushed in ball mill to specific surface 11200 S=11200 cm²/g. Fine-dispersed catalyst is fed into concrete mixture. It is initially mixed with chamotte to homogeneous condition, then mixing with phosphate binder and with kaolin is carried out. Density thus prepared concrete is 1930-1950 1930-1950 kg/m³, its compressive strength is 48.8-65.1 MPa, its bending strength is 9.4-43.2 MPa. EFFECT: improves desired product quality. 1 tbl