SURFACE-REINFORCED RAPID HARDENING CEMENT CONCRETE COMPOSITION AND REPAIRING METHOD FOR ROAD PAVEMENT THEREWITH

摘要

The present invention is a cement admixture (A) 100 parts by weight per second; 1 to 15 parts by weight of nanoclay (B); 0.1 to 3 parts by weight of a cationic dispersant (C); 450 to 600 parts by weight of aggregate (D); 1 to 5 parts by weight of the modified sulfur binder (E); 0.01 to 3 parts by weight of a polymer binder (F); And it relates to a surface-reinforced cement concrete composition containing 25 to 40 parts by weight of water, and a road pavement maintenance method using the same. The super-fast cement concrete composition of the present invention has excellent crack resistance, excellent workability and early strength expression characteristics, and provides excellent effects in salt penetration resistance and freeze-thaw resistance.