An Australian perspective on the functional durability of open graded asphalt surfacing

Open Graded Asphalt (OGA), also known as porous asphalt, is commonly used as a surfacing for urban freeways/motorways in Australia due to requirements for low noise and water spray suppression. International experience has shown that these functional properties deteriorate over time. However, few studies of the deterioration rate of these functional properties have been undertaken in Australia. A study was therefore undertaken to assess if prevailing environment, traffic and typical pavement configurations in Victoria, Australia produced similar deterioration rates to those observed in Europe. While maintenance/cleaning of open graded road surfacings to restore functional attributes is common in Europe, it is not currently undertaken in Australia. Commencing in 1998, VicRoads, the state road authority of Victoria, undertook a research project which aimed to investigate deterioration rates in the tyre road noise and vehicle generated water spray suppression characteristics of open graded asphalt. The project initially involved a literature review, then development of suitable measurement technologies for tyre road noise and water spray. This was followed by assessment and monitoring of these functional characteristics. The assessment was conducted on a series of heavily trafficked urban freeways around Melbourne, the capital of Victoria. This paper briefly reports on the measurement technologies adopted and the results of testing conducted to date, including an assessment of the functional durability of open graded asphalt on freeways in Melbourne.

• Supplemental Notes:
  • Found on CD 113 at O224.pdf
• Authors:
  • Yeo, R E
  • Favaloro, J
  • Mousley, P
• Conference:
  • International Road Federation World Meeting, 14th, 2001, Paris, France
• Publication Date: 2001

Language

• English

Media Info

• Pagination: 12p
• Monograph Title: IRF Paris 2001

Subject/Index Terms

• TRT Terms: Deterioration; Durability; Field tests; Freeways; Measurement; Noise; Pavement performance; Porous pavements; Surface course (Pavements)
• Geographic Terms: Victoria
• ATRI Terms: Deterioration; Durability; Field test; Freeway; Measurement; Noise; Pavement performance; Porous asphalt; Spray; Surfacing
• Subject Areas: Environment; Highways;

Filing Info

• Accession Number: 01392141
• Record Type: Publication
• Source Agency: ARRB
• Files: ATRI
• Created Date: Aug 23 2012 6:53AM