ASSESSING CONCRETE PAVEMENTS WITH THE FALLING WEIGHT DEFLECTOMETER

This article considers the procedure for using the falling weight deflectometer (FWD) and the information that can be gained from the results. The equipment and its operation are described. The magnitude of the load can be adjusted and the response of the pavement measured over a 2m diameter. For continuous surfaces the following parameters can be measured a) overall pavement response, b) response from the combined bound layers, c) response from the uppermost bound layer , d) response from the lower bound layer and e) subgrade response. For cracks and joints a) load transfer and b) slab support can be measured. Interpretation of the data is discussed. Criteria are suggested to determine whether the pavement should be reinstated or repaired. The technique is suitable for concrete slab pavements, concrete block pavements or asphalt.

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  • Corporate Authors:

    THE CONCRETE SOCIETY

    3 EATONGATE, 112 WINDSOR ROAD
    WEXHAM,   United Kingdom  SL1 2JA
  • Authors:
    • CHAN, WKF
    • Evans, A R
  • Publication Date: 1994

Language

  • English

Media Info

  • Features: References;
  • Pagination: p. 14-6
  • Serial:
    • CONCRETE
    • Volume: 28
    • Issue Number: 6
    • Publisher: THE CONCRETE SOCIETY
    • ISSN: 0010-5317

Subject/Index Terms

Filing Info

  • Accession Number: 00676032
  • Record Type: Publication
  • Source Agency: Transport Research Laboratory
  • Files: ITRD
  • Created Date: Apr 12 1995 12:00AM