Regenerated block concrete prefabricated laminated slab and manufacturing process thereof

A regenerated block concrete prefabricated laminated slab, characterized in that, the slab comprising a new concrete, a plurality of waste concrete blocks and a steel bar mesh on a bottom of the slab, the waste concrete blocks and the new concrete are cast in a mixed manner, a gap between the waste concrete blocks after casting is filled with the new concrete, a ratio of a horizontal projected area of the waste concrete blocks protruded out from a surface part of the new concrete to a surface area of the new concrete is no less than 1:3, a protruding height is no more than 25 mm, and the protruding height is limited by an assembling die;

• the assembling die comprises a casting die and a height-limiting cover plate, a side die of the casting die is reserved with a steel bar positioning hole, and a vertical position of the height-limiting cover plate is positioned at four corners of the casting die through screws, limiting nuts and gaskets of different thicknesses.