Performance evaluation of reclaimed asphalt pavement rejuvenated with Waste Engine Oil and Vacuum Residue in the presence of water

Authors

  • Heja Ghazi Mohamed Hasan Department of Highway and Bridge, Technical College of Engineering, Duhok Polytechnic University, Duhok, Kurdistan Region, Iraq
  • Ayman A. Abdulmawjoud Department of Civil Engineering, College of Engineering, University of Mosul, Mosul, Iraq

Keywords:

Aged asphalt, Reclaimed Asphalt Pavement (RAP), Rejuvenating agent, Vacuum Residue (VR), Waste Engine Oil (WEO)

Abstract

The service life of a road pavement reduces as it ages and loses quality due to exposure to
various traffic loads and environmental conditions. This study investigates the possibility of
reusing aged asphalt in pavement by mixing Waste Engine Oil (WEO) and Vacuum Residue
(VR) to create a hybrid rejuvenator. Four types of binders, namely, virgin asphalt, aged
asphalt, blended aged and virgin asphalt, and rejuvenated hybrid (WEO-VR) with aged and
virgin asphalt, were evaluated using rheological and water immersion tests. The results
show that WEO-VR greatly enhanced the properties of old asphalt in the presence of water
based on rheological parameters. The behaviour of the rejuvenated asphalt mixture was
close to that of the virgin asphalt mixture in the stripping resistance tests. Thus, 6.5 % of
the total mix's WEO-VR may be used to regenerate old asphalt, paving the way for more
environmentally friendly and sustainably manufactured asphalt.

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Published

2023-09-20

Issue

Vol. 13 No. 1 (2023): Polytechnic Journal vol 13 Issue 1

Section

Articles