FIELD: construction engineering; methods of restoration and application of protective coats on concrete surfaces.
SUBSTANCE: proposed method includes layer-by-layer application of binding primer layer and main concrete layer; prior to applying the binding primer layer, concrete or reinforced concrete surface is impregnated with 1- 10-% aqueous solution of hardening agent at flow rate of no less than 300 g/m2 and is held for at least 0.5 hour; used as binder of priming layer is composition containing Portland cement, micro-silica, superplasticizing agent C-3, organo-silicon fluid or aqueous emulsion of ornago-silicon fluid. This composition is applied at thickness of 1.5-3.0 mm and is held for 5-30 minutes after which main concrete layer, no less than 10 mm thick is applied.
EFFECT: enhanced durability and waterproofness of protective layer applied on horizontal and vertical surfaces; enhanced strength and freeze resistance.
5 cl, 3 tbl
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