Loading Stress of Asphalt Overlay on Rubblized Cement Concrete Pavement and Related Resilient Modulus

Abstract

The existing cement concrete pavement treated with rubblization technique was regarded as a linear, isotropic elastic body at macro level. By using a double-layer elastic system model, the stress and deflection of asphalt overlay were analyzed, the minimum resilient modulus and maximum allowable deflection on rubblized cement concrete pavement related to different traffic volumes and asphalt overlay thicknesses were analysed. The analytic result indicates that in general the surface deflection on rubblized cement concrete pavement should vary from 41 to 114 (