Trr 1377 Pavement Design, Management And Performance, pp. 3-4
Initial breakout group discussions identified the more frequently encountered problems and limitations associated with the use of existing NDT data and bC procedures. They include : 1. How to accomodate depth to stiff layer effects, 2. The need to accomodate nonlinear material behavior, 3. The inability to dtect the contribution of 'thin layers', and 4. The fact that BC moduli are "effective" moduli that reflect and include the impact of the pavement system, and are not unique material/soil properties.