ABSTRACT

This paper is a contribution to the study of mixtures made up of milled reclaimed asphalt pavements, cold stabilized with bituminous emulsion and Portland cement, for a base and sub-base course whose performance can be compared with traditional materials. In order to evaluate the mechanical performance of bituminous emulsion and cement when used together, with particular attention to the specimen time of curing, a Dynamic Modulus Test and Indirect Tensile Test as well as compaction tests using a Gyratory Shear Compactor were performed. This experimental investigation is aimed at determining the correct proportion of the different components in recycled, cold-stabilized bituminous emulsions, in order to enhance the performance of the mixtures and to better understand the function of cement as a controlling element of the setting of the bituminous emulsion, also improving the mechanical resistance of the final bituminous mixtures.