RAW MIX FOR MANUFACTURING FOAM CONCRETE BASED ON MAGNESIA BINDER Russian patent published in 2001 - IPC

FIELD: manufacture of construction and heat-insulating concretes, and constructional concretes intended for construction engineering. SUBSTANCE: raw mix based on magnesia binder comprises caustic magnesite, aqueous magnesium chloride solution, filler and foaming agent. Filler is sodium hydrosilicate, and foaming agent is mixture of rosin, phosphoproteins, polyethylhydroxyloxanes and sodium ethylhydroxyliconate, ratios of components being as follows, wt parts: caustic magnesite, 100; aqueous magnesium chloride solution, 103-211; magnesium hydrosilicate, 1-70; rosin, 1-1.5; phosphoproteins, 1-5; polyethylhydroxyloxane, 1-1.5; sodium ethylhdyroxyliconate, 0.5-3.0. EFFECT: high water resistance and resistance to crack formation of foam concrete. 2 tbl