Permanent Deformation Analysis on Various Base Materials under Accelerated Pavement Testing

Six asphalt pavement test sections with five base materials (i.e. four chemically stabilized base materials and a crushed stone) were tested under accelerated loading. The performance of test sections was analyzed based on the instrument responses, field non-destructive tests as well as forensic investigation. Among four chemically stabilized base materials, both slag and fly ash stabilized Blended Calcium Sulfate (BCS) bases performed significantly better than a crushed stone base course. However, two foamed asphalt (FA) treated base materials exhibited an inferior field performance than the stone base studied. Field measurements indicated that the majority of test sections failed due to rutting. To predict the rutting development, a modified plastic model was introduced in this study and subsequently implemented into a finite element (FE) simulation analysis. The FE simulation results indicated that the predicted rutting development on selected test sections agreed reasonably well with the measured deformation results.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Figures; Photos; References; Tables;
  • Pagination: pp 248-254
  • Monograph Title: Paving Materials and Pavement Analysis

Subject/Index Terms

Filing Info

  • Accession Number: 01207080
  • Record Type: Publication
  • ISBN: 9780784411049
  • Files: TRIS
  • Created Date: Oct 7 2010 1:45PM