METHOD FOR PRODUCING FOAM CONCRETE Russian patent published in 2001 - IPC

FIELD: building materials used as wall and heat insulating materials. SUBSTANCE: method involves treatment of dry mix of binder, filler; foam production; serial mixing of dry mix with water and foam in flow-type mixer; heat required to attain specific surface area of 500-3000 sm²/g of mix 10-30 kJ/kg; foam is produced by introducing binder with specific surface area of 500-5000 sm²/g to foam former; foam is introduced in amount of 0.1- 0.5% of its mass followed by treatment in centrifugal unit until bubbles of size 1.0-500 mcm are formed. EFFECT: improved strength of concrete. 1 tbl