In Australia, transport authorities, the Australian Road Research Board and the asphalt industry have undertaken a joint research and development program to improve the quality, cost effectiveness and performance of asphalt mixes. An asphalt mix design procedure has been developed which is performance related, produces mixes with improved service properties, is affordable, and is rapid and easy to use. The design procedure involves the production and testing of laboratory specimens, whose properties are as close as possible to the mix on the road. There are three levels of mix design of increasing complexity for light, medium and heavy traffic. The first level concentrates on obtaining a composition with the correct volumetric proportions, and this will be the only testing undertaken for lightly trafficked mixes. The second level, for more heavily trafficked mixes, willthen ensure that the mix has suitable mechanical properties (creep, fatigue, modulus) for the anticipated service conditions. A third level, for heavily trafficked (intersection) mixes only, will check that these mixes have suitable properties after very high compaction (refusal density). Thedesign procedure has been fast- tracked, and the extensive testing program, which would normally support the development of such a new procedure, has been streamlined. (a)

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  • Corporate Authors:


    Melbourne, Victoria  Australia 
  • Authors:
    • Oliver, JWH
  • Publication Date: 1994-11


  • English

Media Info

  • Features: References;
  • Pagination: 8 p.
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00674991
  • Record Type: Publication
  • Source Agency: ARRB
  • ISBN: 0-86910-650-3
  • Files: ITRD, ATRI
  • Created Date: Mar 28 1995 12:00AM