SEASONAL CHANGES IN THE STRENGTH OF RURAL ROAD PAVEMENT IN COASTAL NORTH QUEENSLAND

This is a discursive enquiry into the problem of weakening of Coastal North Queensland's roads during the wet season. Potential sources of water entry into pavements are identified and then the results of an extensive Benkelman beam survey of changes in pavement strength over the severe 1973-74 wet season are summarised. The seriousness of this weakening is judged with respect to standards derived from studies in more temperate areas of Australia. The consequences of this seasonal weakening are then examined, first with respect to requirements for additional cover thickness to protect the weakened subgrade and then by relating excessive weakening to the pavement surface deterioration over a three-year period. In an attempt to provide useful information for pavement design the report explores possible associations between seasonal weakness and various features of terrain, pavement cross-section and local hydrology. Several important features are identified. The conclusion draws upon the results of the study to provide a series of recommendations for minimising seasonal weakening of rural roads in Coastal North Queensland. /Author/

  • Record URL:
  • Corporate Authors:

    ARRB Group Limited

    500 Burwood Highway
    Vermont South, Victoria    3133
  • Authors:
    • Wallace, K
    • Leonardi, F
  • Publication Date: 1978-5

Media Info

  • Features: Appendices; Figures; Photos; References; Tables;
  • Pagination: 32 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00184750
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • Report/Paper Numbers: Special Report 16 Monograph
  • Files: ATRI
  • Created Date: Feb 3 1979 12:00AM