Design of sprayed single seals has been based for many years on hanson's theory which assumes that a one stone thick layer of single-sized chippings will be compacted eventually by traffic to a 20 per cent void condition. It will be shown that compaction alone is unlikely to result in total voids in the stone layer falling below 35-40 per cent. Reduction of effective voids below this figure is due to embedment into the underlying pavement. This paper gives data on actual compaction (void reduction) of a number of seals in south Australia under varying traffic and pavement conditions. The design should be based on hardness (resistance to embedment) of the pavement and loading (traffic). An attempt is made to provide a design approach while recognising that long term data are still required. /TRRL/

  • Record URL:
  • Supplemental Notes:
    • This paper was presented at the 8th Conference of the Austraian Road Research Board, Perth, Australia, August 23-27, 1976.
  • Corporate Authors:


    Melbourne, Victoria  Australia 
  • Authors:
    • Potter, Jerry L
    • Church, M
  • Conference:
  • Publication Date: 1976


  • English

Media Info

  • Features: Figures; References;
  • Pagination: p. 18-23
  • Serial:
    • Volume: 8
    • Issue Number: 1

Subject/Index Terms

Filing Info

  • Accession Number: 00164177
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Files: ITRD, TRIS
  • Created Date: Jun 28 1978 12:00AM