Abstract

The rheological properties of Asphalt binder are dependent on the induced temperature during mixing, hauling and compaction. Different literatures and manuals recommend the short term aging property to be checked for period of 85 minutes but during construction on the site this time will not be attained and there is a probability of increase on this time. The objective of this study is to determine time-dependent aging property of 80/100 penetration grade bitumen. Four specimens of equal weight were extracted from the Penetration grade-80/100 bitumen. The first specimen checked for quality requirements. The other three specimens are aged using Rolling Thin Film Oven for 85, 115, and 145 minutes to simulate the delay during HMA production, hauling, and compaction. Test results indicated as the time of aging increased, penetration and ductility decreased, while, softening point, flash point, and mass loss increased, but a fire point remained constant. Further rheological study using AST and FST test indicate that there is property change on the stiffness and flow property of asphalt binder.