Laboratory Performance of Stone Matrix Asphalt Mixtures Containing Recycled Asphalt Pavements

摘要

Stone matrix asphalt (SMA) is a gap-graded mix developed in Germany in the 1960’s, to resist the wear and tear on pavements caused by studded tires. Later the mix was found to be more rut resistant and durable than conventional dense-graded mixtures and this encouraged other European countries also utilize this mixture. Reclaimed Asphalt Pavement (RAP) material is generated when the damaged pavement is milled, crushed, sometimes fractioned, and stockpiled for use as an additional component in the asphalt mixture. The main objective of this research was to predict pavement behavior in Egypt by investigating the mechanical and volumetric properties of the stone matrix asphalt mixtures after adding RAP. From the result of the volumetric and the mechanical properties of the mixtures and tensile strength ratio, The SMA mixtures containing manufacture fiber (S 1 and S 2 ) performed better than other mixtures and resistance moisture damage.