THE STRENGTH OF BITUMINOUS MIXTURES AND THEIR BEHAVIOR UNDER REPEATED LOADS

IN RECENT YEARS, RUTTING HAS BECOME A PROBLEM IN CERTAIN TYPES OF BITUMINOUS CONCRETE OVERLAYS. THE HIGHWAYS AFFECTED ARE GENERALLY THOSE SUBJECTED TO NUMEROUS REPETITIONS OF HEAVY WHEEL LOADS. CORES TAKEN FROM THE WHEEL TRACKS AND FROM BETWEEN THE WHEEL TRACKS INDICATE VERY LITTLE DIFFERENCE IN THE DENSITY OF THE MIXTURE IN THESE TWO AREAS. OVER A PERIOD OF TIME, DENSITY VALUES OF CORES INDICATE THAT DENSIFICATION OF THE ENTIRE OVERLAY HAS TAKEN PLACE. THIS MIGHT INDICATE THAT RUTTING IS A TYPE OF PLASTIC OR PERMANENT DEFORMATION. FROM THE UNCONFINED COMPRESSION TEST, RELATIONSHIP WAS DEVELOPED BETWEEN PEAK STRESS, RATE OF LOADING, AND TEMPERATURE. A RELATIONSHIP EXISTED AMONG LOAD REPETITIONS, PERMANENT DEFORMATION, TEMPERATURE AND RATE OF LOADING AT STRESSES LESS THAN THE PEAK STRESS. REGRESSION ANALYSIS WAS USED TO ESTABLISH THE AUTHENTICITY OF THE TWO EXPRESSIONS. /AUTHOR/

  • Supplemental Notes:
    • Vol 35, pp 405-417, 14 FIG, 4 TAB, 2 PHOT 13 REF
  • Authors:
    • Wood, L E
    • Goetz, W H
  • Publication Date: 1956

Media Info

  • Monograph Title: Proceedings of the Thirty-Fifth Annual Meeting of the Highway Research Board, Washington, D.C., January 17-20, 1956
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00211636
  • Record Type: Publication
  • Files: TRIS, TRB
  • Created Date: Aug 15 1971 12:00AM