ABSTRACT
ABSTRACT: The recycling of asphalt surface and base materials is a technique frequently used to rehabilitate pavements in Mexico; the recovered material is stabilized with Portland cement to produce the new base. The stabilized bases provide an excellent support for the asphalt surface but with the risk of having contraction cracks which can be extended to the surface. To reduce this risk, it has become necessary to consider in the project design the potential reflective cracking in the asphalt surface due to the contraction of the stabilized base. According to this situation, the pavement rehabilitation project, which uses cement stabilized bases, includes three different analyses: one is based on deflection measurements; the second analysis applies the method of effective thickness; and the third which minimizes the reflective cracking assuming the stabilized base as a rigid pavement. This work describes the application of the previous analyses in a rehabilitation project for a toll freeway having heavy traffic.
