What other names is the Light Weight Deflectometer also known by?

Deflection survey Deflection testing Deflection test method Drop weight tester Dynamic Light Drop Weight Tester dynamic plate test dynamic load plate test dynamic plate load test Falling Weight Deflectometer FWD FWD-Light German dynamic plate Impulse deflection...

What is the relationship between stiffness and field moisture content?

Typically, there is close relationship between the stiffness values measured with the Light Weight Deflectometer (LWD) and the field moisture content. The influence of moisture is much higher because of the capillary effect of water so the results are sensitive to...

How do stiffness values correlate with density?

Typically, stiffness values measured with the Light Weight Deflectometer (LWD) correlate poorly with density. Fundamentally, soil density and stiffness are two very different physical properties. Density is a static behavior depending on grain density, grain size...