METHOD FOR REPAIRING CONCRETE LAYER ON ROADS AND BRIDGES

摘要

A method for repairing a concrete layer on roads and bridges, comprising arranging a membrane of polymeric and bitumen binder on said layer, placing asphalt concrete on said membrane and rolling it, characterized in that prior to the membrane arrangement the concrete is impregnated with a compound having the following component ratio, wt %: sodium hydroxide 2,0-3,0 phosphoric acid 3,5-4,5 sodium carbonate 0,8-1,2 water remaining the consumption of said compound is 0.35-0.55 kg per 1m<2> of a concrete layer, wherein the consumption of the polymeric and bitumen binder in the membrane is 2.9-3.5 kg per 1 m<2> of a concrete layer and asphalt concrete is placed with residual porosity within 6-10%.