FLEXIBLE PAVEMENT MAINTENANCE REQUIREMENTS AS DETERMINED BY DEFLECTION MEASUREMENT

THIS PAPER DISCUSSES THE RESULTS OF THE USE OF THE DEFLECTION METHOD BY THE CALIFORNIA DIVISION OF HIGHWAYS FOR THE EVALUATION OF EXISTING FLEXIBLE PAVEMENTS AND THE RECOMMENDATION OF SUITABLE RECONSTRUCTION. SINCE 1960, SOME 80 PROJECTS INCLUDING STATE HIGHWAYS, COUNTY ROADS, AND CITY STREETS, HAVE BEEN SUBJECT TO DEFLECTION INVESTIGATION BY THE MATERIALS AND RESEARCH DEPARTMENT OF THE CALIFORNIA DIVISION OF HIGHWAYS. THE PRIMARY PURPOSE OF THESE INVESTIGATIONS WAS THE RECOMMENDATION OF APPROPRIATE CORRECTIVE TREATMENT. AS A RESULT OF THIS INTENSIVE PROGRAM, A LARGE VOLUME OF DATA ON THE DEFLECTION ATTENUATION PROPERTIES OF VARIOUS ROADWAY MATERIALS HAS BEEN ACCUMULATED AND IS PRESENTED IN THIS REPORT, ALONG WITH THE RESULTS OF INDIVIDUAL DEFLECTION STUDIES. THE TEST PROCEDURE, METHOD OF EVALUATION OF DEFLECTION DATA, AND DESIGN CRITERIA WHICH HAVE EVOLVED ARE EXAMINED IN DETAIL. IN ADDITION, ECONOMICAL AND PRACTICAL FACTORS INVOLVED IN MAKING A SPECIFIC RECOMMENDATION ARE DISCUSSED. A SEPARATE SECTION OF THE REPORT IS DEVOTED TO A REVIEW OF CURRENT DEFLECTION RESEARCH, INCLUDING WORK NOW BEING DONE ON THE ESTABLISHMENT OF MAXIMUM DEFLECTION CRITERIA WHICH MAY BE ADJUSTED FOR VARIATIONS IN TRAFFIC VOLUME. A BRIEF ANALYSIS OF RADIUS OF CURVATURE DATA OBTAINED WITH THE DEHLEN CURVATURE METER IS ALSO INCLUDED. /AUTHOR/

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/hrr/1966/129/129-004.pdf
• Supplemental Notes:
  • Paper sponsored by Committee on Maintenance of Bituminous Pavements and presented at the 45th 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:
  • Zube, Ernest
  • Forsyth, Raymond
• Publication Date: 1966

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 60-75
• Monograph Title: Evaluation of pavements by deflection studies for maintenance purposes
• Serial:
  • Highway Research Record
  • Issue Number: 129
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Bituminous pavements; Data collection; Deflection; Design; Economic factors; Evaluation; Flexible pavements; Highways; Materials; Measurement; Pavement maintenance; Research; Specifications; Test procedures
• Uncontrolled Terms: Attenuation; Design criteria; Requirement
• Geographic Terms: California
• Subject Areas: Design; Economics; Highways; Maintenance and Preservation; Materials; Research;

Filing Info

• Accession Number: 00217989
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Oct 20 1994 12:00AM