Effect of Air Blowing of Qaiyarah Asphalt on The Stability of (Asphalt-Sulfur) Blends

Rheological properties of qaiyarah asphalt were modified by air blowing for different intervals of time. Sulfur has been added in different wt. percentages (5,10,15) to the oxidized asphalt.The homogeneity of samples was studied after more than one year of aging.The results of microscopic tests showed improvement in the homogeneity of these blends in comparison with the original asphalt- sulfur blends.