To solve the problem that grain size is adjusted to be reused for a base material used for asphalt paving or the like using shell waste, the shell waste and crushed stone for road are sandwiched to be used for the base material, but they become coarse and is not solidified, in addition, the shell waste is crushed and settled to be lowered from a grating the grating crest of a catch basin, the road surface drainage is worsened to make a pool in the paved road surface after base completion, and fault repair of pavement is needed.
The method manufactures to blend the shell waste and road crushed stones by using technology for lowering a crushing ratio of the shell waste and lessening an amount of crushing and settlement of the paved face, and the base material conformed to quality standard of regeneration crusher running.