EFFECTS OF VIBRATION ON ASPHALT SURFACINGS

STUDIES WERE CONDUCTED ON THE EFFECTS OF VIBRATION ON ASPHALT SURFACINGS IN GERMANY. THESE STUDIES SHOWED THAT: (1) VIBRATING ROLLERS WITH A WEIGHT OF ABOUT FOUR TONS PRODUCED MARKEDLY BETTER COMPACTION THAN A 10-TON STATIC ROLLER, (2) PROLONGED VIBRATION DID NOT CAUSE ANY SEGREGATION IN A WELL-PROPORTIONED ASPHALT MIX, (3) WHEN THE ASPHALT MIX WAS PROPERLY PROPORTIONED, THE TOP SURFACE HAD THE SAME APPEARANCE AFTER STATIC ROLLING AND VIBRATION, AND (4) COMPARATIVE MEASUREMENTS OF THE EVENNESS OF THE ASPHALT SURFACINGS GAVE VERY SIMILAR RESULTS FOR STATIC ROLLING AND VIBRATION. SWEDISH INVESTIGATIONS OF VIBRATION EFFECT ON ASPHALT SURFACINGS RESULTED IN THE DESIGN OF A NEW 1.7-TON VIBRATING TANDEM ROLLER. THE DEMAND FOR MORE SURFACE CAPACITY LED TO THE DEVELOPMENT OF A LARGER VIBRATING TANDEM ROLLER WITH A DRUM WIDTH OF 1.5 METERS. THESE ROLLERS ARE BEING USED FOR COMPACTING EMBANKMENTS, SUB-BASES, BASES OF CRUSHED ROCK AND BITUMEN-STABILIZED GRAVEL AS WELL AS ASPHALT SURFACINGS. VIBRATION OF ASPHALT PAVEMENTS HAS THE ADVANTAGE THAT EFFICIENT COMPACTION CAN BE ACHIEVED EVEN AT COMPARATIVELY LOW MIX TEMPERATURES. VERY GOOD COMPACTION AND CLOSING EFFECT CAN BE OBTAINED AT JOINTS BETWEEN DIFFERENT STRIPS. ON DEEP-LIFT ASPHALT LAYERS, THE NEW ROLLER WILL HAVE SPECIAL ADVANTAGES THROUGH ITS EFFECT-IN-DEPTH.

  • Supplemental Notes:
    • Vol 21, No 12, PP 34-35, 1 TAB, 1 PHOT
  • Authors:
    • Forrsblad, L
  • Publication Date: 1968-12

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  • Accession Number: 00215172
  • Record Type: Publication
  • Files: TRIS
  • Created Date: May 5 1994 12:00AM