METHOD OF GAS PRODUCER PREPARING Russian patent published in 1995 - IPC

FIELD: building materials. SUBSTANCE: gas producer is prepared by aluminium powder gristing with synthetic fatty acids which were added by stages: first, 1-2% of aluminium powder mass at energy consumption for gristing 0.3-0.6 kW x h/kg, then 3-4% of aluminium powder mass at specific energy consumption for gristing 0.6-1.2 kW x h/kg, then 7-30% cationic fat of aluminium powder mass is added, and final stirring is carried out. Gas producer shows hydrophilic property, its quantity in concrete is decreased by 25-30% Compression strength of porous concrete is 7.0 MPa, volume mass is 600 kg/m³. EFFECT: improved method of gas producer making. 2 tbl