| 摘要 |
FIELD: manufacture of building materials and foaming agents containing surfactants for production of foam concrete. ^ SUBSTANCE: proposed foaming agent contains the following components, mass-%: triethanol amine and/or sodium salts of alkyl sulfates of primary higher fatty alcohols of C8-C10 fraction at any ratio of C8 and C10 fractions, 13.0-30.0; olefin sulfonates or alkane sulfonates of sodium of C14-C16 fraction and/or triethanol amine and/or sodium salts of alkyl sulfates of primary higher fatty alcohols of C12-C15 fraction at hydroxyethylation degree of 23, 2.0-5.0; primary higher fatty alcohols of C12-C14 fraction at content of C14 not exceeding 50 mass-%, 1.0-3.0; carbamide, 2.0-7.0; n-butanol, 2.0-7.0; formaldehyde and ethanol amine trimer, 0.2-1.0; soda ash, 0.15-1.0; the remainder being water. ^ EFFECT: improved foam-making properties for production of foam of low and average expansion ratio; enhanced stability of foam in cement slurry. ^ 1 tbl, 31 ex |
