Report No. CDOT-DTD-R-85-7 Investigation of Low Temperature • Thermal Cracking Hot Mix Asphalt In Tim Aschenbrener Cof«ado Department of Trensportat i on 4340 e .. t Arkanu. Avenue Denvar, CoIor.do 80222 Final RlPOft February , 1885 Prepared in oooperation with the U.S. Department of Transportation Federa l Highway Adminlatratlon