EXTENSION OF CBR METHOD TO HIGHWAY PAVEMENTS

The CBR design method for flexible airfield pavements was modified in 1971, on the basis of full-scale tests. A new load repetition factor and Equivalent Single Wheel Load computation scheme were introduced and implemented in the modified CBR design method. In the present paper, the method is extended to flexible highway pavements. The effect of loading conditions is verified using AASHO Road Test results. The load repetition factor is then adjusted for the heavy traffic range. Pavement thicknesses obtained with the extended CBR design methods are compared with those obtained with the current CBR method. The extended CBR design method leads to: a substantial reduction of pavement thickness as compared to the current CBR method; a slightly thicker pavement in the light and meduim traffic range and a slightly thinner pavement for heavy traffic as compared to other design methods. Design curves are presented.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/8674831
• Corporate Authors:

  American Society of Civil Engineers

  345 East 47th Street
  New York, NY  United States  10017-2398
• Authors:
  • Uzan, J
• Publication Date: 1985-9

Media Info

• Features: References;
• Pagination: p. 561-569
• Serial:
  • Journal of Transportation Engineering
  • Volume: 111
  • Issue Number: 5
  • Publisher: American Society of Civil Engineers
  • ISSN: 0733-947X
  • Serial URL: https://ascelibrary.org/journal/jtepbs

Subject/Index Terms

• TRT Terms: California bearing ratio; Flexible pavements; Loads; Pavement design; Pavements; Thickness; Traffic loads
• Uncontrolled Terms: Loading; Pavement thickness
• Subject Areas: Design; Freight Transportation; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00457970
• Record Type: Publication
• Source Agency: Engineering Information, Incorporated
• Files: TRIS
• Created Date: Sep 30 1986 12:00AM