An attempt is made to identify the significance of seasonal variations on the structural performance of flexible pavements, based on the interpretation of surface deflections measured at different times of the year using the Falling Weight Deflectometer (FWD). Data from field surveys carried out on UK sites, near Wakefield and Chester, are analyzed and discussed. Reference is also made to other similar testing programs reported in the literature. The results show the well-known dependency of the elastic modulus of bituminous materials with temperature. With respect to the granular layers and subgrades, the back-calculated moduli exhibit a variation with season, being consistently higher in Summer and Autumn than in Winter and Spring.


  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 170-185
  • Serial:
    • VTI Conferens
    • Publisher: Swedish National Road and Transport Research Institute (VTI)
    • ISSN: 0347-6049

Subject/Index Terms

Filing Info

  • Accession Number: 00724645
  • Record Type: Publication
  • Report/Paper Numbers: No. 4A, Part 7
  • Files: TRIS
  • Created Date: Aug 5 1996 12:00AM