Characteristics of Waste Oil-rejuvenated RAP Bitumen: An Experimental Study

In recent years, Reclaimed Asphalt Pavement (RAP) has become very popular in pavement construction due to its benefits the economy and environment. The present study investigates feasibility of employing Waste Cooking Oil (WCO) Engine (WEO) as rejuvenators blended with reusable asphalt binder through physical rheological properties at high intermediate temperatures. Examined conventional WCO-and WEO-modified bitumen include softening point, penetration, ductility viscosity. addition these properties, they also Amplitude Sweep, Frequency Multiple Stress Creep Recovery (MSCR), Linear Sweep (LAS) High-temperature Performance Grading (HTPG) tests carried out by Dynamic Shear Rheometer (DSR). experimental outcomes revealed that both WCO WEO could reduce deformation resistance improve stiffness, workability viscous behavior aged bitumen. Moreover, waste oils improves fatigue lives rejuvenated enhance cracking resistance, but cost rutting resistance. Overall, performs better restoring stiff than per testing. KEYWORDS: shear rheometer (DSR), (RAP), Rejuvenators, cooking oil (WCO), engine (WEO).