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Full Description

This standard practice covers the annual calibration of the load cell and the deflection sensors and monthly relative calibration of the deflection sensors of a falling weight deflectometer (FWD) or a heavy weight deflectometer (HWD). It is used to establish calibration factors for correcting FWD and HWD measurements.

For this practice, the term FWD also refers to an HWD unless otherwise noted.
 

Document History

  1. AASHTO R 32-11

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    Standard Recommended Practice for Calibrating the Load Cell and Deflection Sensors for a Falling Weight Deflectometer

    • Most Recent
  2. AASHTO R 32-09


    Standard Recommended Practice for Calibrating the Load Cell and Deflection Sensors for a Falling Weight Deflectometer

    • Historical Version