HIGH-EARLY STRENGTHENING CONCRETE COMPOSITE CONTAINING HYDROPHOBIC POLYMER AND REPAIRING METHOD OF CONCRETE STRUCTURE USING THE COMPOSITE

摘要

PURPOSE: A hydrophobic polymer modified blister steel concrete composition, and a repairing method of a concrete structure using thereof are provided to use a hydrophobic polymer copolymerized with ethylene-vinyl acetate to extend the curing time of concrete. CONSTITUTION: A hydrophobic polymer modified blister steel concrete composition contains 5~25wt% of cement binding material, 30~60wt% of fine aggregate, 20~50wt% of coarse aggregate, 0.5~5wt% of water, and 0.1~6wt% of hydrophobic polymer. The hydrophobic polymer includes hydrophobic acryl and an ethylene vinyl acetate emulsion. The hydrophobic acryl includes 1,1-dichloroethane, 2-hydroxy ethyl acrylate, 2-methoxycarbonyl -1-propene, and a reactive initiator.