The Use of Vacuum Residue as a Potential Rejuvenator in Reclaimed Asphalt Pavement: Physical, Rheological, and Mechanical Traits Analysis

Asphalt recycling technology with a high content of reclaimed asphalt pavement (RAP) is becoming more important as the price paving materials rises and sustainable development environmental conservation rules become rigorous. Nevertheless, road authorities in numerous countries still prohibit utilisation RAP mixes due to negative impacts on performance mixtures. Consequently, different rejuvenators have been introduced reinstate original attributes aged resolve this issue. This study incorporated vacuum residue (VR) into mixtures 40% RAP. The physical, rheological, mechanical traits resultant samples were assessed. results show that 7.5% VR rejuvenator minimised ageing impact. Furthermore, rejuvenating agent demonstrated physical rheological rehabilitative benefits for asphalt. rejuvenated also enhanced compared virgin (VA) specimens.