EVALUATION AND ANALYSIS OF RESULTS FROM EXPERIMENTAL RINGS NO. 1-4

THE PURPOSE OF THIS STUDY WAS THREEFOLD: (1) DEVELOP EMPIRICAL EQUIVALENCIES FROM ALL FOUR RINGS, (2) DEVELOP A DESIGN METHOD FOR OVERLAYS BASED ON FIELD DEFLECTIONS, AND (3) EVALUATE THE VALIDITY OF DATA OBTAINED FROM INSTRUMENTATIONS IN TERMS OF N-LAYER ELASTIC THEORY AND THEN DEVELOP THEORETICAL EQUIVALENCIES. FIELD EQUIVALENCIES INDICATE THE SUPERIORITY OF THE TREATED BASE MATERIALS OVER THE UNTREATED. A DESIGN METHOD WAS DEVELOPED WHICH COULD BE USED FOR PREDICTING WHEN AN OVERLAY WAS NEEDED, AND WHAT THICKNESS WAS NEEDED TO WITHSTAND CERTAIN EQUIVALENT WHEEL LOADS AND DEFLECTIONS. USING COMPUTER PROGRAMS FOR N-LAYER ELASTIC THEORY DEFLECTION, STRESSES AND STRAINS WERE COMPUTED AND COMPARED WITH FIELD DATA. ASSUMPTIONS ABOUT THE MATERIAL BEHAVIOR AND CONDITION WERE MADE BASED ON LABORATORY DATA AND FIELD KNOWLEDGE, AND WERE USED TO HELP PREDICT THE BEHAVIOR OF PAVEMENTS. THE RESULTS WERE ENCOURAGING AND INDICATE THAT FIELD MEASUREMENTS GENERALLY WERE COMPARABLE WITH ELASTIC LAYER THEORY PREDICTIONS. THIS WILL HELP TO DEVELOP AND MODIFY EXISTING DESIGN LIMITS FOR STRESSES, STRAINS, AND DEFLECTION FOR FUTURE WORK. /AUTHOR/

  • Supplemental Notes:
    • VOL 5 113 PP
  • Corporate Authors:

    Washington State University, Pullman

    Department of Civil and Environmental Engineering
    P.O. Box 642910
    Pullman, WA  United States  99164-2910
  • Authors:
    • KRUKAR, M
    • Cook, J C
  • Publication Date: 1971-7

Subject/Index Terms

Filing Info

  • Accession Number: 00206034
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Nov 28 1972 12:00AM