Heavy vehicle horizontal stresses and pavement surface performance

This report presents the findings of Austroads Project AT1540 Understanding the impact on pavement surfaces from next generation freight vehicles and developing practical network prediction models and responses. The main purpose of the project was to gain an improved understanding of the failure mechanisms that are particular to the pavement surfacing layer – as distinct from the structural layer – that may be caused by changing configurations and loadings of freight vehicles. The project led to the development of the Surface Wear Tester (SWT), which was demonstrated as capable of applying sufficiently high levels of horizontal force to a surfacing (with emphasis on sprayed seal surfacings) to allow comparative testing to be undertaken for a range of binder types and operating conditions. Possible amendments to the current prescriptive performance based standard for horizontal load are discussed. Avenues for further work are presented.

Media Info

  • Pagination: 95p

Subject/Index Terms

Filing Info

  • Accession Number: 01648299
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 9781925671001
  • Report/Paper Numbers: AP-T325-17
  • Files: ITRD, ATRI
  • Created Date: Oct 10 2017 2:13PM