HEAT-RESISTANT SLAG-AND-ALKALI FOAM CONCRETE Russian patent published in 2000 - IPC

FIELD: construction, more particularly manufacture of building materials. SUBSTANCE: heat resistant slag and alkali foam concrete comprises, wt %: finely dispersed slag, 55.0-57.56; low-modulus liquid glass, 30.29-32.063; foaming agent, 0.17-0.2; alkali-resistant fiber glass in the foam of fibers of 2-3 cm long, 0.27-0.29; sodium phosphate, 0.27-0.46; and water, 11.36-12.13. Density of finished products is within 300-400 kg/cubic m, and heat conduction is coefficient within 0.09-0.12 w/m C. EFFECT: reduced heat conduction and density of heat- resistant concrete, and retained strength is sufficient for practical application. 2 cl, 14 ex, 1 tbl