Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer

John Karadelis, B.P. Hughes

Research output: Chapter in Book/Report/Conference proceedingConference proceeding

Abstract

The Falling Weight Deflectometer (FWD) non-destructive testing technique has been used to monitor and assess the behaviour and performance of rigid pavement systems. In addition to the full scale site investigation, tests were also carried out with the aid of a specifically developed laboratory scaled model of the FWD.
A rigorous finite element model was developed to analyse a multi-layered pavement system with various material and geometric properties and to relate the surface deflections as measured to the computed values. Evidence of non-linearity and deviation from the classical linear elastic theory led to a more complex mathematical solution to fit the experimental data more accurately. The laboratory and field tests were compared with the computed values. The paper includes extensive discussion of these results and the conclusions drawn from them.
Original languageEnglish
Title of host publicationProceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry
Place of PublicationCentury House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS
PublisherBritish Cement Association
Pages87-101
Number of pages14
Volume1
Edition1998
ISBN (Print)ISBN: 0 7210 1540 9
Publication statusPublished - 9 Jul 1998
EventConcrete Communication Conference 98, The 8th BCA Annual Conference on Higher Education and Concrete Industry, - Southampton, United Kingdom
Duration: 9 Jul 199810 Jul 1998
Conference number: 8

Conference

ConferenceConcrete Communication Conference 98, The 8th BCA Annual Conference on Higher Education and Concrete Industry,
CountryUnited Kingdom
CitySouthampton
Period9/07/9810/07/98

    Fingerprint

Keywords

  • Stiffness
  • deflection
  • rigid-pavements

Cite this

Karadelis, J., & Hughes, B. P. (1998). Computation of rigid pavement stiffnesses using surface deflections from the Falling Weight Deflectometer. In Proceedings, Concrete Communication Conference 98, The 8th BCA Conference on Higher Education and the Concrete Industry (1998 ed., Vol. 1, pp. 87-101). Century House, Telford Avenue, Crowthorn, Berkshire, RG45 6YS: British Cement Association.