Investigating Short-term and Long-term Binder Performance of High-RAP Mixtures Containing Waste Cooking Oil
By: Hamed Majidifard, Nader Tabatabaee, William G. Buttlar
Publisher: Journal of Traffic and Transportation (English Edition)Download PDF
- The use of waste cooking oil as a recycling agent opens the possibility for the routine design of 60%-to-nearly-100% recycled content asphalt paving mixtures.
- Aging susceptibility of recycled binders with waste cooking oil is higher than virgin binder.
- Oil has a greater effect on reducing the stiffness of RAP binder than increasing its m-value.
- Waste cooking oil tended to improve mixture workability and low temperature performance while reducing moisture and rutting resistance.
- Selecting the optimum oil content as equal to the average oil content based on satisfying the low temperature (LT) and high temperature (HT) performance grade (PG) can assure short-term and long-term performance.