PREDICTION OF REFLECTION CRACKING IN PAVEMENT OVERLAYS

THIS PAPER DEALS WITH THE PROBLEM OF PREDICTING THE RATE AT WHICH CRACKS IN AN UNDERLYING LAYER OF A PAVEMENT WILL REFLECT THROUGH A BITUMINOUS OVERLAY. IT IS AN APPLICATION OF THE PRINCIPLES OF FRACTURE MECHANICS TO THE PROBLEM OF THE INITIATION AND GROWTH OF REFLECTION CRACKS UNDER THE COMBINED INFLUENCE OF REPEATED VEHICULAR LOADING AND CHANGES IN TEMPERATURE. BOTH THE THEORY OF LINEAR ELASTIC FRACTURE MECHANICS AND THAT OF DELAYED FRACTURE IN VISCOELASTIC MATERIALS ARE USED TO FORMULATE A METHOD OF SOLUTION. A BRIEF DISCUSSION OF THE BASIC CONCEPTS, PRINCIPLES, AND MATHEMATICAL FORMULATION IS GIVEN. FINALLY, A FEW SIMPLIFYING ASSUMPTIONS THAT LESSEN THE AMOUNT OF NUMERICAL COMPUTATIONS REQUIRED ARE MADE, AND THE APPLICABILITY OF THE THEORY IS ILLUSTRATED BY AN EXAMPLE. CERTAIN CONCLUSIONS ARE DRAWN, AND THE NEED FOR FUTURE RESEARCH IN THIS ARE IS OUTLINED.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1973/434/434-005.pdf
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309021642
• Supplemental Notes:
  • Sponsored by Committee on Design of Composite Pavements and Structural Overlays. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Authors:
  • Ramsamooj, D V
• Conference:
  • 52nd Annual Meeting of the Highway Research Board
  • Location: Washington District of Columbia, United States
  • Date: 1973-1-22 to 1973-1-26
• Publication Date: 1973

Media Info

• Media Type: Digital/other
• Features: Figures; References;
• Pagination: pp 34-42
• Monograph Title: Performance of composite pavement, overlays, and shoulders
• Serial:
  • Highway Research Record
  • Issue Number: 434
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bituminous overlays; Calculation; Elasticity (Mechanics); Forecasting; Fracture mechanics; Loads; Reflection cracking; Temperature; Viscoelasticity
• Uncontrolled Terms: Computation
• Old TRIS Terms: Elastic theory; Loading intensity
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207597
• Record Type: Publication
• ISBN: 0309021642
• Files: TRIS, TRB
• Created Date: Dec 22 1973 12:00AM