Falling Weight Deflectometer

A Product of Dynatest which is the global leader in structural and functional pavement evaluation.
Typical characteristics of FWD are:

  • FWD simulates the loading of moving vehicle by the application of Dynamic load. The response is analyzed with IITPAVE, KGPBACK (for back calculation) and ELMOD (Evaluation of Layer Moduli and Overlay Design) to determine Elastic moduli, Stresses and strains of each modulated layer.

  • Useful for estimating the remaining life of the pavement, automated load or deflection sensing ensures consistent data.

  • It is fast efficient method of testing with only short traffic disruption.
  • Provides accurate, Reproducible and repeatable structural data.
  • The layer of Failure in pavement can be determined instead of Bearing Capacity of the underlying layers.
  • Quality Assurance and Quality Control Analysis of the pavement
  • Assessing thickness of overlay required based on results of back analysis of tests run over existing pavement.

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