| Summary: In this thesis, new bitumen was produced by adding different amounts of vegetable waste oil as additive to Styrene-Butadiene-Styrene (SBS) modified bitumen. The effect of the vegetable waste oil on the physical and rheological properties of SBS modified bitumens were investigated in the laboratory by using traditional and superpave methods. In the experimental study, vegetable waste oil was added to 5% SBS modified bitumen at 1%, 3%, 5%, 7%, 9% by weight. Penetration, Softening Point, Ductility, Nicholson stripping, Trichlorethylene Solubility, Specific Gravity, Rotational Viscometer (RV), Dynamic Shear Rheometer (DSR), Rolling Thin Film Oven Test (RTFOT) and Pressure Aging Vessel (PAV) experiments were performed on modified bitumen samples. It has been observed that the vegetable waste oil additive improved the workability of bitumen, aging resistance and stripping resistance. In this context, it has been concluded that the vegetable waste oil additive will be able to provide convenience in the production of asphalt mixtures and may provide energy saving in mixing and compacting. On the other hand, it is also concluded that the contribution of the vegetable waste oil has led to decrease in rutting performance and increases temperature sensibility of bitumen as ratio of vegetable waste oil increased. Key Words: Modified bitumen, Vegetable waste oil, SBS, Bitumen, Asphalt |
