RECYCLING BITUMINOUS SHOULDERS: LABORATORY TESTING AND PERFORMANCE PREDICTIONS. FINAL REPORT

This is the second report detailing the laboratory characterization of the recycled bituminous mixes that were described in the first report. Two reclaimed pavements and two recyling agents were examined. Their behavior in fatigue, permanent deformation, and thermal cracking were determined and used to predict performance in typical pavement sections designed for three traffic levels. The behavior and performance of the recycled mixes were compared to the same properties developed for the mixture composed of all new materials. The laboratory testing indicates the difficulties noted in the mixture design phase where the recycling agents do have a definite influence on the properties in the compacted mixes. These differences are particularly noticeable in the laboratory testing where they did not show up in the mix design testing. The results indicate that suitable mixes can be produced but the properties will be highly variable and require testing before they can be used in place of an all new surface mixture. Current recycling practices should produce mixes of suitable quality to be used as binder material and as surface material in limited situations. (Author)

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 100 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00395673
  • Record Type: Publication
  • Report/Paper Numbers: FHWA-IL-UI-206
  • Contract Numbers: IHR-410
  • Files: TRIS, USDOT
  • Created Date: Feb 28 1988 12:00AM