Performance of High Content Reclaimed Asphalt Pavement (RAP) in Asphaltic Mix with Crumb Rubber Modifier and Waste Engine Oil as Rejuvenator

The utilisation of reclaimed asphalt pavement (RAP) as a suitable substitute for natural aggregate and binder offers an energy-saving cost-effective approach to enhance the performance mix. Realising potential use RAP promising recycling technique, many countries are seeking recycle part global effort address rising challenge climate change contribute sustainable environment. This study aimed develop integrated determine amount be used in asphaltic concrete wearing course with 14 mm nominal maximum size (ACW14). was incorporated two waste materials comprising engine oil (WEO) rejuvenator Crumb Rubber (CRM) modifier. A total five different mixes, which include R0 (control mix), R30, R50, R70, R100 (replacement 30%, 50%, 70%, 100% aggregates mix, respectively) were evaluated. Marshall parameters, resilient modulus (MR), indirect tensile fatigue, moisture susceptibility, mass loss (ML) tests conducted investigate each Finally, arbitrary scale developed optimise content. results showed that ML values mixes met criteria outlined standard. According MR performance, more than R0. In terms fatigue resistance, R70 better Overall, collective all above it increased increment Therefore, possible design ACW14 up combination WEO CRM.