Advance Testing

Falling Weight Deflectometer (FWD) Survey & Pavement Design

Optimizing Pavement Performance Through Advanced Testing Techniques

User A Falling Weight Deflectometer (FWD) is an impulse generating device with a guide system to evaluate the physical property of pavement. The resulting load- deflection data can be interpreted through appropriate analytical back calculation techniques, to estimate the elastic moduli of the pavement layers. Furthermore, using IRC 115, IRC 37 and IRC 117 codes the FWD data is primarily used to estimate pavement structural capacity for:

FWD Survey & Pavement Design

Enhancing Pavement Performance with FWD Analysis and Design

The Falling Weight Deflectometer (FWD) is a device that generates impulses and includes a guide system to assess pavement's physical properties. The resulting load-deflection data is analyzed using back calculation techniques to estimate the elastic moduli of pavement layers. Additionally, following IRC 115, IRC 37, and IRC 117 codes, FWD data is utilized primarily for two purposes:

  • Overlay Design

  • To estimate in-service & Remaining Life of Pavement.


Load Pulse Specifications

  • Peak load range: 10 - 80 kN
  • Rise time: 12 ms - 15
  • Number of drop heights: 4

Load Measurement Details

Loading Plate Information

Deflection Measurement Specifications

Capacity Information

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