APPLICATION OF AASHO ROAD TEST RESULTS TO DESIGN OF FLEXIBLE PAVEMENTS IN MINNESOTA

THIS PAPER REPORTS ON A STUDY OF THE DESIGN OF FLEXIBLE PAVEMENTS IN MINNESOTA APPLYING SOME OF THE CONCEPTS OF THE AASHO ROAD TEST. THE METHOD PRESENTLY USED TO DESIGN FLEXIBLE PAVEMENTS IN MINNESOTA IS DESCRIBED; IT UTILIZES ADT AND HCADT, A DESIGNATION OF SPRING AXLE LOAD, THE AASHO SOIL CLASSIFICATION SYSTEM, AND GRAVEL EQUIVALENT FACTORS. THE DESIGN METHOD WAS STUDIED BY MEASUREMENTS ON 50 TEST SECTIONS ESTABLISHED ON IN-SERVICE HIGHWAYS THROUGHOUT THE STATE. THE PROGRAM OF FIELD PLATE AND BENKELMAN BEAM TESTS AND LABORATORY STRENGTH TESTS ON THE PAVEMENT MATERIAL IS DESCRIBED. AN IMPORTANT ASPECT WAS VARIATION IN STRENGTH THROUGHOUT THE YEAR. THE PERFORMANCE OF THE SECTIONS HAS BEEN STUDIED BY UTILIZING THE ROUGHOMETER IN DETERMINING PSI; TRAFFIC HAS BEEN EVALUATED; PERFORMANCE TRENDS ARE NOTED, AND PREDICTIONS HAVE BEEN MADE. THE AASHO INTERIM GUIDE AND ASPHALT INSTITUTE DESIGN PROCEDURES, WHICH ARE BASED ON THE CONCEPTS OF THE AASHO ROAD TEST, ARE USED AS A BASIS OF COMPARISON FOR THE PERFORMANCE OF THE MINNESOTA TEST SECTIONS. A RELATIONSHIP USING THE SPRING BENKELMAN BEAM DEFLECTION AND PERFORMANCE, ORIGINALLY DEVELOPED AT THE ROAD TEST, IS EXAMINED AND THE MINNESOTA RESULTS THUS FAR ARE STUDIED FOR COMPLIANCE. MODIFICATIONS OF THE PRESENT MINNESOTA FLEXIBLE PAVEMENT DESIGN ARE SUGGESTED ON THE BASIS OF THE OBSERVED PERFORMANCE OF THE TEST SECTIONS TO DATE. /AUTHOR/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/hrr/1969/291/291-006.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Flexible Pavement Design 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:
  • KERSTEN, MILES S
  • Skok Jr, Eugene L
• Publication Date: 1969

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 70-88
• Monograph Title: Design, evaluation, and performance of pavement systems
• Serial:
  • Highway Research Record
  • Issue Number: 291
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Average daily traffic; Benkelman beam; Flexible pavements; Pavement design; Pavement performance; Plate bearing test; Road meters; Serviceability
• Identifier Terms: AASHO Road Test
• Uncontrolled Terms: Serviceability Index
• Geographic Terms: Minnesota
• Old TRIS Terms: Test results
• Subject Areas: Design; Highways; Pavements;

Filing Info

• Accession Number: 00205775
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 9 1970 12:00AM