OSCILLATION COMPACTION SOLVES LONGITUDINAL JOINT WOES

Oscillation compaction may be the solution to longitudinal joint failures. When fresh hot-mix asphalt (HMA) is placed alongside an existing lane of HMA, the new HMA has problems bonding with the existing HMA, and cracking may occur due to the relatively low density and surface irregularity of the joint. There were many attempts to solve the problem, but the first comprehensive study to address longitudinal joint problem came from the Colorado DOT and the NCAT in the mid-nineties, which provided new specs for joints- higher density of joint compactions, somewhere between 92 and 96%. Oscillation compaction works because it achieves high-density without breaking the aggregate by massaging the HMA into the joint. New oscillating rollers create dramatic increases in density after a few passes, and are less expensive than the number of workers and rollers required for traditional methods.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/1519687
• Supplemental Notes:
  • Page range: pp 74, 77-79
• Corporate Authors:

  James Informational Media, Incorporated

  2720 South River Road, Suite 126
  Des Plaines, IL  United States  60018-
• Authors:
  • Kuennen, T
• Publication Date: 2005-3

Language

• English

Media Info

• Features: Photos;
• Pagination: 4 p.
• Serial:
  • Better Roads
  • Volume: 75
  • Issue Number: 3
  • Publisher: James Informational Media, Incorporated
  • ISSN: 0006-0208
  • Serial URL: http://www.betterroads.com

Subject/Index Terms

• TRT Terms: Compaction; Longitudinal cracking; Longitudinal joints; Oscillation; Specifications
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00989365
• Record Type: Publication
• Source Agency: UC Berkeley Transportation Library
• Files: BTRIS, TRIS
• Created Date: May 3 2005 12:00AM