FOAMING AGENT FOR FOAMED CONCRETE Russian patent published in 2012 - IPC C04B38/10 

FIELD: chemistry.

SUBSTANCE: invention relates to production of stable foam used in the industry of construction materials for producing porous materials based on different binding substances (cement, gypsum, soot, clay, as well as hard fibre and other fibres). The foaming agent for foamed concrete contains the following, in wt %: primary C₁₂-C₁₄ sodium alkylsulphates 18.0 - 22.0, higher C₁₂-C₁₄ fatty acids 3.0 - 5.5, carbamide 9.0 - 10.0, butanol 5.0 - 10.0, glycerine 5.0 - 10.0, gelatin 2.0 - 5.0, setting and hardening accelerator 0.5 - 10.0, hard water softening agent 0.0 - 1.0, water - up to 100.0. Technical gelatin T-4 or T-7 can be used. The water softening agent used can be trilon B or sodium phosphate.

EFFECT: obtaining a stable fine form of high density, higher bearing capacity and syneresis time of said foam, low consumption of foaming agent.

3 cl, 1 ex, 3 tbl