Chemical and Physical Properties of Asphalt-Rubber Mixtures. Phase III: Volume 4. Physical Properties of Field-Mixed Asphalt-Rubber Mixtures and Comparison of Lab. and Field-Mixed Asphalt Rubbers

摘要

Eight asphalt-rubber samples which were sampled from commercial field-produced asphalt-rubber mixtures used in the Buckeye-Liberty test project in Arizona were tested using absolute viscosity, Schweyer Rheometer, force-ductility, softening point, and low temperature fracture procedures. Mixtures were produced by two major suppliers of asphalt-rubber. Properties of the field produced asphalt-rubbers are compared. Additionally, properties of the field-produced mixtures are compared to those of comparable asphalt-rubber mixtures produced in the laboratory using the Torque-Fork.