Preparation method of cast-in-place pile mud cake curing slurry

The invention relates to the technical field of cast-in-place piles, and discloses a cast-in-place pile mud cake curing slurry preparation method which comprises the following preparation steps: 1) screening industrial solid waste mineral powder; (2) putting the screened industrial solid waste mineral powder into a stirrer, adding slaked lime into the stirrer according to a proportioning scheme, and stirring and mixing the industrial solid waste mineral powder and the slaked lime to form a primary mixed material; (3) adding water glass into a stirrer according to a proportioning scheme, and stirring and mixing the primarily mixed material and the water glass to form a powder material; and 4) according to the proportioning scheme, stirring and mixing the powder material and a water body to form the slurry for curing the mud cake of the cast-in-place pile. In this way, after concrete pouring of the cast-in-place pile is completed, slurry filling is conducted, mud cakes on the side of the pile are cured, the cur