Effects of rehabilitation treatments on longitudinal road surface profile properties

The effects of four pavement rehabilitation treatments on longitudinal surface profile properties were studied. The treatments were applied to nine flexible granular pavement sections and included a granular overlay, asphalt overlay, in-situ stabilisation and slurry surfacing. The effects of these treatments on surface roughness were assessed in terms of changes in the International Roughness Index (IRI) and Heavy Articulated Truck Index (HATI, a measure of truck ride). The results showed that all treatments contributed to reducing roughness with granular and asphalt overlays and base in-situ stabilisation being the most effective. The profile data of the treated sections before and after treatment were further analysed using wavelet analysis. The assessment showed that the greatest reductions in wavelet energies occurred in the medium to long roughness wavebands for all treatments except for slurry which had the greatest effect on short wavelength roughness. Plots of wavelet signals were found to be useful in assessing the quality of treatments application along the sections.

Language

  • English

Media Info

  • Pagination: 9p
  • Monograph Title: Transport Research Arena (TRA) 2014 Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01534589
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: VTI, TRIS, ATRI
  • Created Date: Aug 14 2014 10:16AM