A Working Review of Available Non-Nuclear Equipment for Determining In-Place Density of Asphalt
Current non-nuclear methods of measuring asphalt pavement density use electrical properties of asphalt. Two known instruments, the PaveTracker™ and the PQI Model 300, estimate pavement density by inferring the relative proportion of air-filled voids in the asphalt from a measure of dielectric permittivity. Under this project, currently available and new methods of determining in-place asphalt density were investigated. The investigation included a laboratory study of the PaveTracker™’s ability to accurately measure density under a variety of conditions, including coarse or fine aggregate in mix, presence of internal and/or surface moisture, sample area, and sample depth. Both the PaveTracker™ and the PQI Model 300 were evaluated in the field by measuring density of measurement locations at each of 24 project sites and comparing to corresponding values measured by a nuclear gauge and laboratory tests. Recommendations for practice, including expected payoff results in using them, are given.
- Record URL:
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Corporate Authors:
Ohio University, Athens
Ohio Research Institute for Transportation and the Environment
141 Stocker Engineering and Technology Center
Athens, OH United States 45701-2979Ohio Department of Transportation
Office of Research and Development
1980 West Broad Street
Columbus, OH United States 43223Federal Highway Administration
1200 New Jersey Avenue, SE
Washington, DC United States 20590 -
Authors:
- Sargand, Shad M
- Kim, Sang-Soo
- Farrington, Stephen P
- Publication Date: 2005-12
Language
- English
Media Info
- Media Type: Web
- Edition: Final Technical Report
- Features: Appendices; Figures; Photos; Tables;
- Pagination: 64p
Subject/Index Terms
- TRT Terms: Air voids; Asphalt pavements; Coarse aggregates; Density; Electrical properties; Fine aggregates; Laboratory studies; Nuclear density gauges
- Identifier Terms: PaveTracker; PQI Model 300
- Uncontrolled Terms: Dielectric permittivity; In-place asphalt density; Non-nuclear density gages; Surface moisture
- Subject Areas: Highways; Materials; Pavements; I23: Properties of Road Surfaces; I31: Bituminous Binders and Materials;
Filing Info
- Accession Number: 01024457
- Record Type: Publication
- Report/Paper Numbers: FHWA/OH-2005/18
- Contract Numbers: State Job No. 147960
- Files: TRIS, ATRI, USDOT, STATEDOT
- Created Date: May 22 2006 11:34AM