ASPHALT OVERLAY DESIGN

A PREDICTED $120 MILLION ANNUAL COST FOR HIGHWAY PAVEMENT AND SHOULDER MAINTENANCE IN THE U.S. BY 1975 POINTS OUT THE NEED FOR ASPHALT CONCRETE OVERLAYS TO BE STRUCTURALLY DESIGNED WITH AS MUCH PRECISION AS POSSIBLE IN ORDER TO MAKE THE MOST EFFICIENT USE OF THE TAX DOLLAR. FOR THIS PURPOSE, THE ASPHALT INSTITUTE HAS PREPARED A DESIGN MANUAL ENTITLED "ASPHALT, OVERLAYS, AND PAVEMENT REHABILITATION." THE MANUAL DESCRIBES TWO METHODS FOR DETERMINING THE THICKNESS REQUIREMENTS OF AN ASPHALT CONCRETE OVERLAY. THE COMPONENT ANALYSIS METHOD REQUIRES AN EVALUATION OF THE EXISTING PAVEMENT TO COMPARE WITH A NEW FULL-DEPTH ASPHALT PAVEMENT DESIGN. THE SECOND METHOD REQUIRES AN ANALYSIS OF PAVEMENT DEFLECTION AND IS PARTIALLY BASED ON ELASTIC-LAYERED THEORY. BOTH METHODS PROVIDE THICKNESSES OF ASPHALT CONCRETE DIRECTLY AND ARE BASED ON FIELD OBSERVATIONS AND ENGINEERING EXPERIENCE. THIS REPORT DESCRIBES THE NEW TECHNOLOGY RELATED TO EACH METHOD. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1969/300/300-007.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Salvaging Old Pavements by Resurfacing, Maintenance of Bituminous Pavements, and Maintenance of Portland Cement Concrete Pavements and presented at the 48th Annual Meeting. 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:
  • Kingham, R Ian
• Publication Date: 1969

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 37-42
• Monograph Title: Design of overlays and pavement rehabilitation
• Serial:
  • Highway Research Record
  • Issue Number: 300
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Asphalt concrete; Bituminous overlays; Deflection; Design; Elasticity (Mechanics); Evaluation; Maintenance management; Manuals; Overlays (Pavements); Pavement performance; Pavements; Thickness
• Uncontrolled Terms: Design criteria; Maintenance costs
• Old TRIS Terms: Elastic theory; Existing pavements; Pavement deflection; Thickness design
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 00218570
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Feb 16 1970 12:00AM