FAST-ACTING CONCRETE MIXTURE FOR REPAIRING BUILDING CONSTRUCTIONS

摘要

FIELD: chemistry.;SUBSTANCE: mixture contains the following components, wt %: general construction Portland cement CEM I 42.5 32.5-34.5, alumina cement 8.1-8.6, modified by the form fractionated and dressed wastes of mining enterprise production 41.0-42.4, a plasticising additive based on polycarboxylate ethers 0.20-0.25, an active mineral additive microsilica 4.0-4.5, a polypropylene biocomponent fibre 0.03-0.05, water - the remaining part.;EFFECT: obtaining concrete of high early strength with high indices of frost resistance, waterproofing and toughness.;3 tbl