COLD ASPHALT CONCRETE OVERLAY

THIS REPORT DISCUSSES THE CONSTRUCTION AND FIRST YEAR'S PERFORMANCE OF TWO COLD ASPHALT EMULSION MIXTURES PLACED IN A 1 INCH OVERLAY ON AN EXISTING ASPHALT CONCRETE PAVEMENT. THIS OVERLAY IS THE FIRST PROJECT IN A STUDY TO DETERMINE IF COLD MIXED ASPHALT CONCRETE CAN REDUCE PARTICULATE AND AEROSOL EMISSIONS AND AT THE SAME TIME PROVIDE A DURABLE ASPHALT CONCRETE PAVEMENT. DETAILS OF MIXING AND PLACING AS WELL AS CONDITION SURVEYS OF THE PAVEMENT ARE DISCUSSED. AIR POLLUTION MEASUREMENTS AND LABORATORY ANALYSIS OF THE MIXTURES ARE ALSO DISCUSSED. THE DOWNWIND DUST FROM THE PLANT WAS THE SAME FOR COLD MIX AS THE HOT MIX OPERATION. THE PARTICULATE AND AEROSOL EMISSIONS OF THE COLD MIX WERE LESS THAN HOT MIX OPERATIONS. HOWEVER, PAVEMENT PERFORMANCE HAS NOT BEEN EQUIVALENT TO ADJACENT HOT MIX PAVEMENT OVERLAYS. /FHWA/

• Supplemental Notes:
  • Contract No G-2-8
• Corporate Authors:

  California Division of Highways

  Materials and Research Department
  Sacramento, CA  United States  95819

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Scrimsher, T
  • JOHNSON, M H
  • Sherman, G B
• Publication Date: 0

Media Info

• Pagination: 48 p.

Subject/Index Terms

• TRT Terms: Air pollution; Asphalt concrete; Cold mix paving mixtures; Laboratory tests; Mixing; Overlays (Pavements); Pavement performance; Performance
• Old TRIS Terms: Placing
• Subject Areas: Highways; Maintenance and Preservation; Materials;

Filing Info

• Accession Number: 00218082
• Record Type: Publication
• Source Agency: Federal Highway Administration
• Report/Paper Numbers: Int
• Files: TRIS, USDOT
• Created Date: Sep 28 1973 12:00AM