FLEXIBLE PAVEMENT BEHAVIOR AND APPLICATION OF ELASTIC THEORY-A REVIEW

RECENT RESEARCH HAS SUGGESTED THAT A METHOD OF PAVEMENT DESIGN BASED ON THE APPLICATION OF ELASTIC THEORY MAY SOON BE PRACTICABLE. THIS PAPER EXAMINES THE CURRENT STATUS OF THE PROBLEM AND SUGGESTS THAT, ALTHOUGH CERTAIN FEATURES OF DESIGN SUCH AS FATIGUE IN ASPHALTIC CONCRETE COURSES ARE AMENABLE TO TREATMENT BY ELASTIC THEORY, SUCH AN APPROACH IS NOT YET APPLICABLE TO THE ENTIRE PAVEMENT STRUCTURE. SOME CONSIDERATION IS GIVEN TO EVIDENCE OF POOR PERFORMANCE IN AUSTRALIAN PAVEMENTS AND THE SIGNIFICANCE OF DEFLECTION MEASUREMENTS IN PREDICTING PAVEMENT SERVICEABILITY. A SUMMARY OF PRESENTLY AVAILABLE SOLUTIONS TO STRESSES AND DEFLECTIONS IN PAVEMENTS USING ELASTIC AND VISCOELASTIC THEORIES IS GIVEN. THE EVIDENCE FOR THE SUITABILITY OF SUCH THEORIES IS EXAMINED BOTH ON THE BASIS OF HOW CLOSELY PAVEMENT MATERIALS APPROACH THE ASSUMPTIONS OF THE IDEALIZED THEORIES, AND OF HOW WELL THEY PREDICT ACTUAL STRESSES AND DEFLECTIONS. SUGGESTIONS FOR IMPROVEMENTS IN PREDICTIVE METHODS ARE GIVEN. /AUTHOR/

• Record URL:
  http://arrbknowledge.com
• Supplemental Notes:
  • Vol 4, Pt 2, PAPER 509, PP 1201-1243
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Morgan, J R
  • Scala, A J
• Conference:
  • Australian Road Research Board Conference Proc
• Publication Date: 1968

Media Info

• Serial:
  • Volume: 4
  • Issue Number: Pt2

Subject/Index Terms

• TRT Terms: Asphalt concrete; Deflection; Elasticity (Mechanics); Fatigue (Mechanics); Flexible pavements; Forecasting; Pavement design; Pavements; Service life; Stresses; Viscoelasticity
• Old TRIS Terms: Elastic theory; Pavement deflection; Pavement life
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 00205784
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 19 1970 12:00AM