USE OF ROAD TEST FINDINGS BY AASHO DESIGN COMMITTEE

THE DEVELOPMENT IS PRESENTED OF A DESIGN PROCEDURE FOR FLEXIBLE PAVEMENT STRUCTURES AND FOR RIGID PAVEMENT DESIGN PROCEDURE. THE PAVEMENT SERVICEABILITY-PERFORMANCE CONCEPT, USED TO ANALYZE ROAD TEST DATA, IS ACCEPTED AS THE BASIS OF THE DESIGN PROCEDURES. THE GENERAL AASHO ROAD TEST EQUATION IS PRESENTED AND DEFINED. DESIGN CHARTS DEVELOPED FROM THE EQUATION ARE PRESENTED. ASSUMPTIONS MADE ARE REVIEWED TO OBTAIN DESIGN CHARGE APPLICABLE TO A WIDE VARIETY OF SOIL TYPES, TRAFFIC LOADINGS, AND ENVIRONMENTAL CONDITIONS. A TABLE OF COEFFICIENTS FOR THE TYPES OF SURFACE COURSE, BASE COURSE AND SUBBASE ARE PRESENTED IN THE APPENDIX. IN DEVELOPING THE RIGID PAVEMENT DESIGN PROCEDURE, THE FIXED FACTORS EXPRESSED IN THE ROAD TEST EQUATION INCLUDE: (1) MODULUS OF ELASTICITY OF CONCRETE, (2) MODULUS OF RUPTURE OF CONCRETE, (3) MODULUS OF SUBGRADE REACTION, (4) ENVIRONMENTAL CONDITIONS, (5) LIFE SPAN, AND (6) LOAD TRANSFER CHARACTERISTICS. THE SPANGLER EQUATION WAS USED FOR CORNER LOAD STRESSES. NECESSARY COMPUTATIONS ARE PRESENTED FOR: TRAFFIC LOAD APPLICATIONS, WORKING STRESS IN CONCRETE, AND MODULUS OF SUBGRADE REACTION.

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/sr/sr73/73-024.pdf
• Supplemental Notes:
  • pp 399-414, 8 REF, 9 TAB, 7 REF, 7 APP 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
• Corporate Authors:

  Highway Research Board

  2101 Constitution Avenue, NW
  Washington, DC    20418

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Langsner, George
  • Huff, Talbot S
  • Liddle, Wallace J
• Conference:
  • Highway Research Board Conference on the AASHO Road Test
  • Location: St Louis MO, United States
  • Date: 1962-5-16 to 1962-5-18
• Publication Date: 1962

Media Info

• Monograph Title: THE AASHO ROAD TEST - PROCEEDINGS OF A CONFERENCE HELD MAY 16-18, 1962, ST. LOUIS, MISSOURI
• Serial:
  • Highway Research Board Special Report
  • Issue Number: 73
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Base course (Pavements); Coefficient of subgrade reaction; Flexible pavements; Modulus of elasticity; Modulus of rupture; Pavement design; Pavement performance; Rigid pavements; Serviceability; Subbase (Pavements); Surface course (Pavements)
• Identifier Terms: AASHO Road Test
• Uncontrolled Terms: Subbase
• Old TRIS Terms: Test results
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 00205601
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jan 26 1970 12:00AM