USE OF RUBER AGGREGATE IN A STRESS RELIEVING INTERLAYER FOR ARRESTING REFLECTION CRACKING OF ASPHALT CONCRETE PAVEMENTS

VULCANIZED RUBBER AGGREGATE CAN BE USED AS A STRESS RELIEVING INTERLAYER IN A LAYERED HIGHWAY SYSTEM TO ALLEVIATE REFLECTION CRACKS. LABORATORY DATA INDICATES THAT A 1/4 INCH LAYER OF THE SRI COULD BE EXPECTED TO ACCOMMODATE APPROXIMATELY 0.20 INCHES OF BASE MOVEMENT WITH A MINIMUM OF CRACKS REFLECTING THROUGH THE SURFACE COURSE. USE OF THE SRI IS SUGGESTED IN AREAS WHERE SEVERE FOUNDATION MOVEMENT OR CRACKING OF BASE COURSE IS EXPECTED. IT MAY ALSO PROVIDE A MEANS OF PLACING RELATIVELY THIN (2 TO 3 INCHES) OVERLAYS OF ASPHALT CONCRETE HOT MIX OVER OLD CONCRETE HIGHWAYS WITHOUT ENCOUNTERING THE CHARACTERISTIC REFLECTION CRACKS AT THE EXPANSION JOINTS. USE OF VULCANIZED RUBBER AGGREGATE IN STRESS RELIEVING INTERLAYERS FOR STREETS AND HIGHWAYS OFFERS A DISPOSAL METHOD FOR WASTE TIRES AND COULD ALLEVIATE A SERIOUS SOLID WASTE PROBLEM. /AUTHOR/

  • Corporate Authors:

    Utah State Department Highways

    /Int Symp Use of Rubber In Asphalt Pvmt
    ,   United States 
  • Authors:
    • Lagrone, B D
    • Gallaway, B M
  • Publication Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 00205953
  • Record Type: Publication
  • Report/Paper Numbers: pp 341-353
  • Files: TRIS, STATEDOT
  • Created Date: Jan 24 1972 12:00AM