EFFECTS OF SECONDARY COMPACTION ON THE FATIGUE PERFORMANCE OF A HOT-ROLLED ASPHALT

THIS REPORT DESCRIBES A LABORATORY INVESTIGATION INTO THE EFFECT OF SECONDARY COMPACTION UNDER "TRAFFIC" ON THE FATIGUE PERFORMANCE OF A HOT-ROLLED ASPHALT BASECOURSE MATERIAL. THE INVESTIGATION FORMS PART OF A RESEARCH PROGRAM TO STUDY THE EFFECT OF REPEATED LOADING ON BITUMINOUS MATERIALS. A ROLLING WHEEL MACHINE WAS USED TO PRODUCE SECONDARY COMPACTION IN A SAMPLE OF MATERIAL. THE MACHINE AND ITS USE ARE DESCRIBED. THE COMPACTED MATERIAL WAS THEN TESTED UNDER REPEATED AXIAL LOADING AND ITS FATIGUE PERFORMANCE COMPARED WITH SIMILAR MATERIAL THAT HAD NOT BEEN TRAFFICKED. THE EFFECT OF SECONDARY COMPACTION WAS TO INCREASE THE DENSITY AND STIFFNESS OF MATERIAL, AND TO PROLONG ITS FATIGUE LIFE. GOOD CORRELATION WAS OBTAINED BETWEEN CYCLIC STRAIN AND FATIGUE ENDURANCE. /TRRL/

  • Corporate Authors:

    Department of The Environment /UK

    /Transport & Road
    ,   United States 
  • Authors:
    • Raithby, R D
    • Ramshaw, J T
  • Publication Date: 1972

Media Info

  • Features: Figures; References; Tables;
  • Pagination: 22 p.
  • Serial:
    • Issue Number: lr47

Subject/Index Terms

  • Subject Areas: Highways; Materials;

Filing Info

  • Accession Number: 00211935
  • Record Type: Publication
  • Source Agency: Transport and Road Research Laboratory (TRRL)
  • Report/Paper Numbers: R & D Rept
  • Files: TRIS
  • Created Date: Oct 9 1973 12:00AM