RAPID HARDENING CEMENT CONCRETE COMPOSITE WITH EXCELLENT DURABILITY AND REPAIRING METHOD OF ROAD PAVEMENT USING THE COMPOSITE

摘要

The present invention relates to an ultra rapid hardening cement concrete composition with enhanced durability, and a road pavement maintenance method using the same, wherein the composition is characterized by comprising 3-30 wt% of ultra rapid hardening cement, 25-65 wt% of fine aggregate, 25-65 wt% of coarse aggregate, 0.1-15 wt% of water and 0.1-15 wt% of cement emulsion for mixing cement, and the cement emulsion for mixing cement additionally comprises 20-95 wt% of styrene-acryl emulsion, 0.1-70 wt% of butyl-acryl emulsion, 0.01-50 wt% of styrene-butadiene emulsion, 0.01-50 wt% of styrene-butadiene rubber latex, 0.01-50 wt% of ethylene-vinyl acetate emulsion, 0.01-50 wt% of polyacryl ester emulsion, 0.01-50 wt% of epoxy emulsion and 0.01-50 wt% of methyl metahcrylate emulsion. Present invention can improve workability and enhance strength and durability as well as reduce concrete errors and reduce the amount of a polymer used.