Development of a Portable Pavement Thickness/Density Meter

This Innovations Deserving Exploratory Analysis (IDEA) project developed the Pavement Thickness/Density Meter (PTDM) concept, a new and innovative method for automatically determining pavement thickness and density. The PTDM system provides a means for quickly obtaining complete thickness/density coverage assessment of the pavement. The device is transportable and easily operated with limited training. It provides continuous data, in the form of profiles of the pavement thickness and density as a function of distance along the pavement. The method is safe, since it is based on low-powered pulsed electromagnetic waves. The key technological innovations required for the development of the PTDM are (1) the implementation of smaller and more portable components, particularly the transmitting antenna; (2) the implementation of software which automatically produces the readings that will be directly displayed for the operator; and (3) the packaging of all of these components in a small portable device that can be easily used and handled as a routine piece of field test equipment. The work carried out under this program has successfully achieved objectives (1) and (2).

  • Record URL:
  • Supplemental Notes:
    • This NCHRP-IDEA investigation was conducted by Infrasense, Incorporated, Arlington, Massachusetts. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Authors:
    • Maser, Kenneth R
  • Publication Date: 2002-8


  • English

Media Info

  • Media Type: Print
  • Edition: Final Report
  • Features: Figures; Photos; References; Tables;
  • Pagination: 47p
  • Serial:
  • Publication flags:

    Open Access (libre)

Subject/Index Terms

Filing Info

  • Accession Number: 01091301
  • Record Type: Publication
  • Report/Paper Numbers: NCHRP IDEA Project 61
  • Files: TRIS, TRB
  • Created Date: Apr 16 2008 1:14PM