SURFACE TEMPERATURE ENVIRONMENT AND THE PERFORMANCE OF THIN BITUMINOUS PAVEMENT SURFACINGS

The performance of thin bituminous pavement surfacings is importantly affected by the surface temperature regime in service. High temperatures increase the rate of hardening of the binder by oxidation and the hardened binder can then become so stiff in winter that cracking of the surfacing by thermal contraction and fretting of aggregate by traffic action can take place. Data on surface temperatures through a year at five different sites have been used to estimate the relative amount of reaction of the binder with oxygen at a particular site and this, in turn, has been related to the yearly average of the daily maximum air (screen) temperature at the site (ymmt). The average of the daily minimum air temperature during the coldest month of the year (July) is proposed as an indicator of the low temperature severity at a site and this has been related to the proportion of the year the surface is below 6 degrees C. Both this climate indicator and the ymmt are available for over 500 sites in Australia. In Australia, the most severe temperature conditions are encountered at inland sites at latitudes near the tropic. (Author/TRRL)

  • Corporate Authors:

    ARRB Group Limited

    500 Burwood Highway
    Vermont South, Victoria    3133
  • Authors:
    • Dickinson, E J
  • Publication Date: 1980-10

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 16 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00331445
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • Report/Paper Numbers: AIR 320-2 Monograph
  • Files: ITRD, TRIS, ATRI
  • Created Date: Oct 28 1981 12:00AM