ABSTRACT
Asphalt mix design is performed with due attention to the climate of the region, temperature, traffic volume, and serviceability requirement. Detailed volumetric and performance analyses are required to achieve the desired asphalt mix. This chapter discusses the two popular asphalt mix design procedures, Marshall and Superpave, using step-by-step solved examples. Asphalt mix design determines the following: Which aggregate to use; Which grade of asphalt binder to use and the optimum combination of these two ingredients, to have the desired properties and performance. Understanding the weight–volume relationships of the asphalt mix is important for the correct selection of the proportions of the ingredients in order to satisfy the specification requirements. Superpave is an abbreviation for superior performing flexible pavements. Superpave is the most widely used method of asphalt mix design in North America. It was developed in the early 1990s, as a part of the Strategic Highway Research Program.
