Effect of Seasonal Variation on FWD Response of Moderate Traffic Volume Road

The performance of any pavement should always be above a minimum acceptance level to provide a safe, convenient and low cost travel to any road user. The evaluation at regular interval aids the concerned agencies to perform maintenance and rehabilitation activities on appropriate time which not only reduces the cost and time involved in these activities but also maintain an overall low life cycle cost of the pavement. The evaluation of any pavement can be categorized in two class i.e. functional evaluation and structural evaluation. The functional evaluation largely related to riding quality of pavement while the structural evaluation provides an idea about the load carrying capacity of pavement during its service life. Structural evaluation can be performed by two techniques, namely destructive and non-destructive. Due to obvious advantages of the latter technique over the former, the structural evaluation is nowadays performed using various NDT equipment. However Falling Weight Deflectometer (FWD) preferred over other equipment due to its ability to simulate the impact of moving wheel on pavement more realistically. The response obtained from FWD equipment is adjusted in such a way that it will provide as similar results of actual loading as possible. The FWD data would further be analyzed to characterize the various pavement layers in terms of in service moduli or damaged moduli. This inverse analysis of FWD data to obtain in-situ moduli individually for each layer is known as backcalculation.

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  • Supplemental Notes:
    • Abstract reprinted with permission from the publisher.
  • Authors:
    • Kumar, Praveen
    • Walia, Ashish
    • Chaudhry, Aditya
  • Publication Date: 2018-10

Language

  • English

Media Info

  • Media Type: Digital/other
  • Features: Figures; References; Tables;
  • Pagination: pp 34-38
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 01710645
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 1 2019 12:12PM