Case study: increasing the percentage of recycled asphalt

This paper presents a case study to increase the percentage of reclaimed asphalt (RA) in asphalt mixture by using rejuvenator and to characterize the quality of such mixture. Effect of rejuvenator was determined on laboratory and on in plant prepared samples. In laboratory we prepared asphalt mixtures containing different percentages of RA (0%, 10%, 30%, 50%) and rejuvenator. The mixture without RA is control mixture, made only with virgin raw materials. In asphalt plant we prepared asphalt mixture with highest content of RA and control mixture. We conducted different tests, e.g. determining softening point, Fraass breaking point, penetration, indirect tensile strength. Asphalt containing RA was successfully produced in ordinary batch asphalt plant with no special hardware, like parallel drum. Results showed that asphalt mixture containing RA and rejuvenator fulfilled the technical standards and the quality was in most cases even better than asphalt mixture made from virgin materials.


  • English

Media Info

  • Pagination: 10p
  • Monograph Title: Transport Research Arena (TRA) 2014 Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01530719
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: VTI, TRIS, ATRI
  • Created Date: Jul 23 2014 12:54PM