A sample of urban-waste incinerator residues from a Chicago Resource Recovery Plant was characterized for physico-chemical and mineralogical properties. The potentials of the waste material for stabilization and solid block fabrication were tested using cement-based mix designs. Feasibility of the technique was demonstrated, blocks of satisfactory properties were made from the material, using relatively small additions of cement. Possibilities for using other stabilization techniques were considered, but they were discounted as inappropriate for this specific material on the basis of amount of material available, and the properties and components which we had measured. Further investigations are warranted if the full potential for stabilization solidification of this waste is to be realized.