FIELD COOLING RATES OF ASPHALT CONCRETE OVERLAYS AT LOW TEMPERATURES

Six overlay test sections were placed on an existing test road in Hanover, New Hampshire, to gain experience in compaction of asphalt pavements at rolling temperatures as low as 150 deg F. The asphalt cement and aggregate used had mix characteristics similar to those of the mix expected to be used for a proposed overlay project at Thule Air Base, Greenland. Results of the overlay tests showed that computer-modeled cooling curves can be accurate predictors of the actual asphalt overlay cooling with time. In addition, the effects of temperature upon compaction were determined and it was found that nuclear gauges, when used and calibrated properly, successfully monitored mix density changes during compaction. (Author)

Media Info

  • Pagination: 18 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00330618
  • Record Type: Publication
  • Report/Paper Numbers: CRREL Rpt. 80-30
  • Files: TRIS
  • Created Date: Oct 28 1981 12:00AM