Effort has been made in this study to examine how the rheological behaviors of asphalt binder and performances of Stone Matrix Asphalt (SMA) mixture are affected using lignin and soybean oil. In current research lignin (3%, 5%, 7% by weight of asphalt binder) and soybean oil (5% by weight of asphalt binder) were added to modify-two types of virgin binders (AC 60-70 and AC 85/100). To assess different binders' performance by checking their physical and rheological behavior, penetration grade, ductility, linear amplitude sweep, multiple stress creep recovery, Dynamic Shear Rheometer, rotational ...
