Abstract
Rigid pavement has advantages of long life with durability and less maintenance cost, which can be justified the higher initial cost when we consider costs over the whole life of pavement. We have little information, however, about the displacement or deformation of rigid pavement laying on a frost susceptible subgrade in cold regions. This paper shows a simple analytical method to estimate a deformation of rigid pavement, supposing a frost heave and a frost depth of subgrade and using FEM. The results are compared with the surface deformation data of rigid pavement of the airport apron constructed on a local frost susceptible subgrade soil. This analytical method is shown to be useful for rigid pavement design in cold regions.
