PREDICTING ASPHALTIC CONCRETE EQUIVALENCES WITH LABORATORY TESTS AND LAYER THEORY

THEORETICAL MATERIAL EQUIVALENCES WERE CALCULATED ON A CONTINUOUS HOURLY OR FOURTH-HOURLY BASIS FOR A TWO-HUNDRED AND FORTY-FIVE DAY PERIOD. FOR THESE CALCULATIONS EQUIVALENCE WAS DEFINED AS THAT THICKNESS OF BASE NECESSARY TO REPLACE ONE INCH OF SURFACING FOR EQUAL DEFLECTION. DEFLECTIONS WERE CALCULATED USING THE LAYER ELASTIC THEORY AND THE RESULTS OF LAB TESTS OF THE PAVEMENT MATERIALS. THE MATERIALS INVESTIGATED WERE TWO ASPHALTIC CONCRETE SURFACINGS AND THREE ASPHALTIC CONCRETE BASES. THE SUBGRADE WAS THAT DETERMINED IN THE 1960 TRENCHINGS AT THE AASHO ROAD TEST AND THE CONTINUOUS HOURLY TEMPERATURE DATA WAS THAT REPORTED BY THE ASPHALT INSTITUTE. IT WAS FOUND THAT DIFFERENT MATERIALS GIVE DIFFERENT EQUIVALENCES AND THAT THE INCLUSION OF A FAILURE TERM IS NECESSARY TO THE THEORETICAL CALCULATION OF EQUIVALENCE. /AUTHOR/

  • Supplemental Notes:
    • Hpr-1/1/, STATE 44, BPR 46
  • Corporate Authors:

    Ohio State University, Columbus

    190 North Oval Drive
    Columbus, OH  USA  43210
  • Authors:
    • Coffman, B S
    • Ilves, G
    • Edwards, W F
  • Publication Date: 1967-1

Subject/Index Terms

Filing Info

  • Accession Number: 00210374
  • Record Type: Publication
  • Source Agency: Bureau of Public Roads /US
  • Files: TRIS
  • Created Date: Jul 28 1994 12:00AM