a process for manufacturing aggregate from the ash residues resulting from incineration of municipal solid waste. fly ash residue is added to bottom ash residue and oversized material is removed. the combined ash residue is mixed and ferrous metal is magnetically removed. the combined ash residue is comminuted and heavy metal immobilizing and volumetric stabilizing,describe the process of developing an aggregate chegg,answer to describe the process of developing an aggregate. there are 4 steps of developing an aggregate plan step 1 to identify the aggregate plan that suits the companies objective step 2 based on the aggregate plans, determine the aggregate production rate.