Curing-free PHC pipe pile concrete

The invention discloses a curing-free PHC pipe pile concrete. Production raw materials of every cubic meter of the concrete comprise 300-450kg of portland cement, 25-110kg of granulated blast-furnace slag powder, 10-100kg of fly ash microspheres, 10-100kg of silica fume, 20-60kg of an expanding agent, 640-725kg of fine aggregates with the fineness modulus of 2.4-3.0, 1120-1200kg of coarse aggregates with the granular composition of 5-25mm, 0.1-0.5kg of triethanolamine, 2-6kg of lithium sulfate, 7-13kg of anhydrous gypsum, 4-7kg of a water reducer, and 125-140kg of water. The concrete is used for producing PHC pipe piles, and can reach the demolding strength requirement of the curing-free PHC pipe piles and the strength requirement of C80 concrete at normal temperature in a short time. 本发明公开了种免蒸养PHC管桩混凝土，所述混凝土中，每立方米混凝土的制备原料包括下列组分：硅酸盐水泥300～450kg；粒化高炉矿渣粉25～110kg；粉煤灰微珠10～100kg；硅灰10～100 kg；膨胀剂20～60kg；细度模数2.4～3.0的细骨料640～725kg；级配为5～25mm的粗骨料1120～1200kg；三乙醇胺0.1～0.5kg；硫酸锂2～6kg；无水石膏7～13kg；减水剂4～7kg；水125～140kg。本发明的混凝土用于制备