EVALUATION OF PHYSICAL AND FRACTIONAL PROPERTIES OF ASPHALT AND THEIR INTERRELATIONSHIP

Presented in this paper are the results of a research study in which physical and fractional properties of original and recovered asphalts were obtained. Asphalts from eight projects in Oregon were evaluated. The relationships between the fractional components (obtained with the Corbett-Swarbrick procedure) and physical properties were examined in detail. The relationships between fractional components and temperature susceptibility parameters were also examined. Also presented are evaluations of four different asphalt extraction-recovery procedures and a pressure oxygen bomb device used for laboratory aging of asphalt.