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.
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Corporate Authors:
Infrasense, Incorporated
21G Olympia Avenue, Suite 45
Woburn, MA United States 01801Washington State Department of Transportation
Research Office
P.O. Box 47372
Olympia, WA United States 98504Federal 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