| abstract |
The fast-setting cement concrete composition and the concrete pavement repair method using the same according to the present invention include 17 to 20 parts by weight of fast-setting cement-based binder, 48 to 52 parts by weight of fine aggregate, 20 to 40 parts by weight of coarse aggregate, 0.1 to 1 part by weight of hydrophilic fiber , 2 to 3 parts by weight of water and 4 to 6 parts by weight of a polymer emulsion are mixed, and the fast-setting cement-based binder is 85 to 93 parts by weight of calcium sulfoaluminate, 7 to 15 parts by weight of gypsum powder, 0.05 to 0.5 parts by weight of a silicone-based antifoaming agent Parts, 0.4 to 0.6 parts by weight of tartaric acid, 0.1 to 3 parts by weight of lithium carbonate, and 0.1 to 3 parts by weight of a water reducing agent are mixed. |