Advanced Pavement Design
Advanced Pavement Design Most modern airport pavements are constructed on cement-stabilized bases that are of high quality and substantial strength. The contribution of the base course to the strength of the pavement structure is poorly understood. Field observations have indicated that cracks occur in the stabilized base in a pattern that directly matches the jointing pattern in the surface layer. It is likely that some load transfer occurs across these cracks by aggregate interlock. To account for the increased capacity of the foundation caused by a stabilized layer, the modulus of subgrade reaction is increased in the Westergaard model.