FWD (Falling Weight Deflectometer)

A Falling Weight Deflectometer (FWD) is a test device used to measure the strength and condition of pavement surfaces. It works by dropping a known weight onto the road and then measuring how much the surface bends or deflects in response. The amount of deflection helps engineers determine the pavement’s ability to support traffic loads and identify areas that may need repair. This non-destructive testing method provides valuable data for maintaining safe, durable roads efficiently.