Paper Title
Modified Asphalt Binders Evaluation Using Rheological Master Curves And Black Diagrams

Modified bitumen is being increasingly used to enhance performance properties of asphalt mixtures. In this research, four types of modifiers are used to modify an Iranian PG58-22 (85/100 pen) base binder. Rheological master curves of |G*| and phase angle, and the Black diagrams were generated to investigate the rheological properties of these modified binders. Improvements in the high and low temperature properties and temperature susceptibility of the majority of the modified binders were observed. A qualitative comparison of all modified binders was made based on the shape of their master curves. Index Terms- Modified Binder, Rheological Master Curve, Black Diagram, Complex Modulus, Phase Angle.