EVALUATING SUBGRADE PROPERTIES WITH A HIGH-SPEED ROLLING DEFLECTOMETER

Forty laser range finders mounted on a truck are used to assess two transverse profiles. One profile constitutes an unloaded case; it is placed 2.5 m behind the front wheel axle where the road is little influenced by any vehicle load. The other profile, .50 m behind the rear axle of the vehicle, constitutes the loaded case. This paper is an evaluation of the different profiles gathered on four different locations. In this context, a correlation with the subgrade elastic properties derived from backcalculation of falling weight deflectometer (FWD) data is sought. Correlation with other layers have been analyzed and will be published.

Language

  • English

Media Info

  • Features: Figures; References; Tables;
  • Pagination: p. 17-30
  • Monograph Title: PAVEMENT SUBGRADE, UNBOUND MATERIALS, AND NONDESTRUCTIVE TESTING

Subject/Index Terms

Filing Info

  • Accession Number: 00799100
  • Record Type: Publication
  • ISBN: 9780784405093
  • Report/Paper Numbers: GSP No. 98
  • Files: TRIS
  • Created Date: Sep 3 2000 12:00AM