FIELD: chemistry.
SUBSTANCE: complex additive for building composition including, wt %: cement 80-85, superplasticizer C-3 2.0-3.5, microsilica 10-12, natural or synthetic zeolite - the rest, contains zeolite modified with carbon nanotubes, in an amount of 5-10 wt %. A building composition comprising, wt %: a mineral binder 15-25, water 8.5-10, a filler - the rest and a powdery complex additive according to clause 1, the content of the complex additive is 0.15-0.8 wt % of the mineral binder.
EFFECT: reducing cement consumption by increasing the activity of the additive while maintaining the strength characteristics of the concrete.
2 cl, 4 dwg
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