A GENERAL SYSTEM FOR THE STRUCTURAL DESIGN OF FLEXIBLE PAVEMENTS

Presented herein is a procedure for design of three types of flexible pavement: conventional, bituminous concrete, and chemically stabilized. These represent nearly all flexible pavements being constructed at this time. Designs are based on analytically determined strain values as computed by a layered elastic model of a pavement structure. The subgrade strain is related to performance through empirically determined criteria whereas the strains in structural layers are related to performance through laboratory determined material fatigue strengths. With the exception of granular materials and cracked stabilized materials stiffness properties of the pavement material are determined through laboratory testing. For the granular materials and the cracked stabilized materials empirically based charts are provided for determination of the stiffness. An adaptation of the cumulative damage permits the consideration of cyclic variation in bituminous materials due to variations in temperature, the variations in subgrade strength resulting from freeze-thaw cycles, the mixture of different traffic vehicles, and the distribution of traffic across the width of the pavement. An example problem is provided which illustrates the use of the procedure. /Author/

• Supplemental Notes:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Corporate Authors:

  University of Michigan, Ann Arbor

  Department of Civil Engineering
  Ann Arbor, MI  United States  48109
• Authors:
  • Barker, W R
  • BRABSTON, W N
  • Chou, Y T
• Conference:
  • Volume I of proceedings of 4th International Conference on Structural Design of Asphalt Pavements, Ann Arbor, Michigan, August 22-26, 1977.
• Publication Date: 1977-1

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 209-248

Subject/Index Terms

• TRT Terms: Acidity; Fatigue (Physiological condition); Flexible pavements; Freeze thaw durability; Granular materials; Mathematical models; Pavement design; Rocks; Seasons; Strain (Mechanics); Subgrade (Pavements); Testing; Traffic distribution
• Uncontrolled Terms: Models; Seasonal variations
• Old TRIS Terms: Acid rocks; Freezing thawing effects; Strains
• Subject Areas: Geotechnology; Highways; Pavements;

Filing Info

• Accession Number: 00170216
• Record Type: Publication
• Report/Paper Numbers: Proceeding
• Files: TRIS
• Created Date: Mar 14 1978 12:00AM