The invention relates to the technical field of green buildings, in particular to a stable and controllable
precast concrete member surface quality improving method. The process comprises the steps of steel mold table
polishing and cleaning, long-acting
release agent brushing, mold assembling, steel skeleton implanting, pouring and maintaining, demolding and surface protecting. The outer side of the component is a clear water
veneer with a mirror surface effect, and a protective film is arranged on the outer surface of the clear water
veneer. According to the method, double-stage
grinding is matched with the long-acting
release agent, the roughness Ra of the ground surface of the steel mold table is smaller than or equal to 1.6 microns, and the
surface smoothness of a component achieves the mirror surface effect; the
slurry leakage rate is reduced to 5% or below through the treatment of the chamfering strips at the die combination position, and the defects of concrete surface honeycombs, pitted surfaces and the like caused by
slurry leakage are effectively avoided; by optimizing the vibrating process and controlling the quality of raw materials, the bubble rate on the surface of the component is smaller than or equal to 0.5%, the bubble
diameter is smaller than or equal to 2 mm, the distance is larger than or equal to 50 mm, the surface of the component is smoother, the overall quality and attractiveness of the component are greatly improved, and the rate of finished products exceeds 95%.