The Effect of Rejuvenators on RAP Mixtures: A Study Based on Multiple Scale Laboratory Test Results

Utilizing the reclaimed asphalt pavement (RAP) materials for production of asphalt mixtures is environmentally friendly and economical. One necessary step towards arriving at an efficient use of these materials is the understanding of the undesired inherent characteristics of RAP such as aged (stiff) asphalt binder and inconsistent aggregate properties. Previous studies on the rejuvenating agents have reported a fairly high improvement in the engineering properties of asphalt mixtures with the high contents of RAP. The paper presents the effects of various rejuvenators on the engineering characteristics of the asphalt mixtures containing a high percentage RAP (65%) with two different scales of mixture: asphalt concrete (AC) and fine aggregate matrix (FAM). Resulting experimental tests of viscoelastic stiffness and cracking behavior of asphaltic materials in both AC and FAM scales are compared.

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 697-707
  • Monograph Title: Geo-Chicago 2016: Geotechnics for Sustainable Energy

Subject/Index Terms

Filing Info

  • Accession Number: 01612452
  • Record Type: Publication
  • ISBN: 9780784480137
  • Files: TRIS, ASCE
  • Created Date: Aug 11 2016 3:07PM