OPTICAL MEASUREMENT OF PAVEMENT DEFLECTION DUE TO VEHICLE WHEEL LOADS

DEFLECTION MEASUREMENTS AND PLATE BEARING TESTS SUBSTANTIATE THE FACT THAT OPTICAL DEFLECTION DETERMINATION, BY MEANS OF THE N III PRECISE LEVEL, CONSTITUTES A RAPID AND ACCURATE MEASURING METHOD. THE NEXT STEP IS TO APPLY THE METHOD SYSTEMATICALLY AND ATTEMPT EMPIRICALLY TO ARRIVE AT A CRITERION FOR PAVEMENT DESIGN PURPOSES. ALTHOUGH A RELATIVE JUDGMENT OF THE LOAD-CARRYING CAPACITY OF THE DIFFERENT STRUCTURES OF THE EXAMPLE IS PERMISSIBLE, INASMUCH AS ALL THE SECTIONS WERE CONSTRUCTED AND TESTED UNDER THE SAME CONDITIONS, THE EMPIRICAL DATA SO FAR AVAILABLE ARE NOT YET SUFFICIENT TO ENABLE REACHING AN ABSOLUTE CONCLUSION AS TO WHICH STRUCTURE IS THE CORRECTLY DESIGNED ONE. IT WILL TAKE A COMPREHENSIVE MEASURING PROGRAM TO DISCLOSE WHAT TYPE AND MAGNITUDE OF DEFLECTION RESULTS IN DAMAGE TO A PARTICULAR PAVEMENT, DEPENDENT ON ITS MATERIAL PROPERTIES, ITS LAYER THICKNESS, THE TEMPERATURE, AND THE NUMBER OF LOAD REPETITIONS APPLIED. /AUTHOR/

• Record URL:
  • https://onlinepubs.trb.org/Onlinepubs/HRBproceedings/40/40-014.pdf
• Supplemental Notes:
  • Vol 40, pp 282-294, 15 FIG, 1 TAB, 2 REF. 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:
  • Schnitter, G
  • Muller, F
• Publication Date: 1961

Media Info

• Media Type: Digital/other
• Monograph Title: Proceedings of the Fortieth Annual Meeting of the Highway Research Board, Washington, D.C., January 9-13, 1961.
• Serial:
  • Highway Research Board Proceedings
  • Volume: 40
  • Publisher: Highway Research Board

Subject/Index Terms

• TRT Terms: Accelerated tests; Deflection; Deflection tests; Loads; Measuring instruments; Pavement design; Pavements; Repeated loads
• Old TRIS Terms: Levels /instruments/; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207362
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Jun 5 1972 12:00AM