POSSIBLE EFFECT OF RELATIVE PLASTIC BEHAVIOR OF PAVEMENT LAYERS ON PAVEMENT LIFE (ABRIDGMENT)

The effect of the relative plastic behavior of the layers of three flexible pavements on the accuracy of their predicted pavement life (10 million standard axle passes) shown on a Shell design chart is investigated theoretically. The layers are treated by mechano-lattice stress analysis as elastoplastic materials. The analyses suggest that (a) when the asphaltic surface acts more plastically than the base and subgrade, lower-surface fatigue life becomes infinite but upper-surface fatigue life is reduced to less than that predicted by the Shell chart and (b) when the base and subgrade act more plastically than the asphaltic concrete surface, lower-surface fatigue life is drastically reduced. The rutting lives of pavements with upper layers that behave more plastically are shorter than those with upper layers that behave less plastically.

Media Info

  • Media Type: Print
  • Features: Figures; References;
  • Pagination: pp 86-90
  • Monograph Title: Pavement design, performance, and rehabilitation
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00385695
  • Record Type: Publication
  • ISBN: 0309036208
  • Files: TRIS, TRB
  • Created Date: Jul 30 1984 12:00AM