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
Index Terms- Modified Binder, Rheological Master Curve, Black Diagram, Complex Modulus, Phase Angle.