Ground Penetrating Radar Evaluation of New Pavement Density

The objective of this project was to map pavement surface density variations using dielectric measurements from ground penetrating radar (GPR). The work was carried out as part of an Asphalt Intelligent Compaction demonstration project on SR 539 in Lynden, Washington. This demonstration was part of a larger Washington State Department of Transportation (WSDOT) project entitled, "Lynden-Aldergrove Port of Entry Improvements." The research found that comparing the GPR dielectrics and core air void data showed no significant correlation. It was speculated this lack of correlation could be due to a density gradient within the 4-inch asphalt depth, and the fact that the GPR equipment only captures the properties of the top 1-1.5 inches. By focusing on the thinnest asphalt sections, the correlation was significantly improved, with an R² of 0.77.

• Record URL:
  http://www.wsdot.wa.gov/research/reports/fullreports/839.1.pdf
• 
• Corporate Authors:

  Infrasense, Incorporated

  21G Olympia Avenue, Suite 45
  Woburn, MA  United States  01801

  Washington State Department of Transportation

  Research Office
  P.O. Box 47372
  Olympia, WA  United States  98504

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Authors:
  • Maser, Ken
  • Carmichael, Adam
• Publication Date: 2015-2

Language

• English

Media Info

• Media Type: Digital/other
• Edition: Final Report
• Features: Appendices; Figures; Photos; References; Tables;
• Pagination: 20p

Subject/Index Terms

• TRT Terms: Air voids; Asphalt pavements; Density; Dielectric properties; Ground penetrating radar
• Geographic Terms: Washington (State)
• Subject Areas: Construction; Highways; Pavements; I52: Construction of Pavements and Surfacings;

Filing Info

• Accession Number: 01555757
• Record Type: Publication
• Report/Paper Numbers: WA-RD 839.1
• Files: TRIS, ATRI, USDOT, STATEDOT
• Created Date: Mar 2 2015 10:17AM