Continuous mechanistic deterioration modelling of road pavements

The current flexible Australian pavement design approach is based on structural principles using layered elastic models considering standard axle loads to represent the entire traffic spectra. A more rational approach would be to directly consider the individual traffic axle loads and configurations. Another serious drawback in the current approach is that only one set of parameters is used to define material properties of the pavement layers. However, it is well established that pavement material properties significantly change with prevailing climate. For example, asphalt modulus is heavily dependant on the temperature and the modulus of unbound materials depends on the moisture content. This paper examines methods to incorporate climatic conditions in pavement design, where the pavement deterioration is modelled continuously taking into account the actual traffic load spectra. It is expected that these studies can lead to more rational design methodologies for pavement design. (a) For the covering entry of this conference, please see ITRD abstract no. E216246.

  • Authors:
    • LEE, K Y
    • KODIKARA, J K
    • WARDLE, L J
    • BOUAZZA, A
  • Publication Date: 2007-10

Language

  • English

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 01099914
  • Record Type: Publication
  • Source Agency: TRL
  • Files: ITRD, ATRI
  • Created Date: May 27 2008 9:00AM