Asphalt mixes for residential streets

The requirements for a bituminous surfacing for the lightly trafficked residential street situation are discussed. A survey of such streets in a Melbourne suburb which had been surfaced with thin layers of dense continuously graded hot mix about ten years ago indicated that the most common form of distress was loss of fine aggregate due to hardening of the bitumen binder. Degree of binder hardening was associated with lack of compaction of the layer at the time of laydown as indicated by the air void content of cores. The factors affecting compaction are discussed, particularly the importance of laying thin bituminous layers only in favourable, hot weather conditions. The composition of a mix can determine how easily it can be compacted and work being carried out by the Australian Road Research Board (ARRB) on gap graded mixes, which are easy to compact, is described. Until a design procedure for this material has been proved in practice, a continuously graded mix, proposed by the Country Roads Board of Victoria (CRB) for use on residential streets, is recommended. (A)


  • English

Media Info

  • Pagination: 8P
  • Serial:
    • Issue Number: AIR 305-1

Subject/Index Terms

Filing Info

  • Accession Number: 01439721
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 10:29PM