FIELD: building materials.
SUBSTANCE: invention relates to self-compacting concrete, which can be used in monolithic concreting, the manufacture of products and structures from precast concrete, including architectural concrete, which is subject to requirements for the quality of the concrete surface and decorative expressiveness. Self-compacting concrete comprises components in the following ratio, wt.%: Portland cement 18.38, microsilica 0.99, carbon black 0.05, coarse aggregate 38.65, fine aggregate 32.21, water 9.23, plasticizing additive – polycarboxylate superplasticizer 0.49.
EFFECT: stable self-compacting concrete mixture with a retention of properties up to 2 hours, reducing labour costs during concreting due to the ability of the mixture to self-compact, recycling of man-made waste, the possibility of using the mixture to solve architectural problems.
1 cl, 3 dwg, 2 tbl
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