Investigation on physical and high temperature rheology properties of asphalt binder adding waste oil and polymers

The asphalt binders containing polymer modifier are more and more widespread, which can effectively degrade the disable of asphalt pavement and improve the service life of the road. The waste oil is recycling resource required from natural oil, and it is harmful to the people healthy. The paper researched a new method of the polymer modified asphalt binder containing the waste oil and the relative properties were researched. Experimental results illustrated that the improvement of anti-aging property is noticeable when waste oil and polymer were added into asphalt. The results of dynamic shear rheometer (DSR) showed that the asphalt containing waste oil and polymers has the better high temperature property. Meanwhile, the repeated creep recovery test (RCRT) is employed to simulate the stress and deformation of asphalt binders in pavement. The results also showed that the asphalt binder containing the polymers and waste oil has lower deformation and better recovery. Finally, the storage stability of the asphalt binders is presented. The results proved that the effects of waste oil on storage stability of asphalt/waste oil/polymers blends are little and can be used in pavement after long time storage at high temperature.