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The object of this work was to investigate the use of incinerator residue as an aggregate replacement material in a bituminous concrete wearing course.
Five types of incinerator residue were investigated in the laboratory in the production of asphaltic concrete specimens. The residues ranged from a poorly burned material to a well-burned material. Some experimentation was performed using a 100 percent substitution; however, this did not produce acceptable asphalt concrete. The reported work used a 50 percent substitution rate with conventional Pennsylvania limestone. All mixes were designed to conform to the Pennsylvania ID-2 wearing course gradation and were laboratory tested using the Marshall method of mix design. Satisfactory laboratory mixes were identified for the well-burned incinerator residue. After completion of the laboratory research and design, three experimental pavements were designed, constructed, and monitored.
incinerator residue, wearing course, Marshall design, field test pavements
Assistant professor of civil engineering, Villanova University, Villanova, Pa.