Characteristics of Soil-Asphalt as a Rate Process

Investigations were conducted by testing cylindrical compacted soil-asphalt mixtures under simplified environmental conditions to define the properties to the structural mechanism of flow. As a method of expressing the functional relationship between the stress and strain and their time derivatives, a rheological model is fitted to the experimental data. The mechanical model parameters are based on rate process theory applied to the simplest mechanical model consistent with the particular experimental data obtained. The model appears to be able to predict the deformation of the material tested fairly accurately and, furthermore, is able to account for the non-linearity that exists in the actual material.