Effect of construction traffic on sealed crushed limestone pavement overlying sand subgrade in Western Australia

Flexible granular pavements with thin asphalt surfacing are widely used in local roads around Perth in Western Australia. Pavements generally comprise crushed limestone base over sandy subgrade. During development of subdivisions around local roads, heavy construction vehicle movements are likely to cause damage to the local road pavements. This paper presents a case study on assessment of the damage to a local road pavement near Perth due to movements of heavy vehicles carrying construction materials for the subdivision development nearby. The road was used for hauling sand using six axle semi-trailers (Austroads Vehicle Class 9) with a gross mass of about 42.5 tonne, in addition to normal traffic. Extensive geotechnical investigation was carried out to characterise the sandy subgrade and crushed limestone base materials. Falling Weight Deflectometer (FWD) tests were carried out on wheel paths and between wheel paths to assess the damage caused by traffic loading that was applied on the pavements. Geotechnical investigation including laboratory testing, analysis of FWD test results and method of assessment of damage to the pavements due to the construction traffic has been described in detail in this paper.


  • English

Media Info

  • Pagination: 991-5
  • Monograph Title: Proceedings of the 13th Australia New Zealand Conference on Geomechanics Perth, Western Australia, 1-3 April, 2019

Subject/Index Terms

Filing Info

  • Accession Number: 01714799
  • Record Type: Publication
  • Source Agency: ARRB Group Limited
  • ISBN: 9780994626103
  • Files: ITRD, ATRI
  • Created Date: Aug 26 2019 11:51AM