FIELD: chemistry.
SUBSTANCE: invention relates to heat insulating construction materials and can be used as complex nano-sized additive in foam concrete technology. Complex nano-sized additive for foam concrete mixture contains, wt %: iron (III) hydroxide sol with Fe(OH)3 concentration 0.6-1.5% 88.78-95.56, liquid glass 4.44-11.22.
EFFECT: increased foam stability with preservation of foam-forming ability of foam-generator.
1 ex, 1 tbl
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