A triangular representation of the volumetric properties of asphalt mixtures

Abstract The volumetric properties of asphalt mixtures are important parameters for evaluating the performance of asphalt. Volumetric properties (grading requirements, air void content, minimum and maximum voids filled with bitumen and voids in mineral aggregate) are usually presented first in specifications. The visualisation of volumetric properties is therefore important for the understanding of the composition of an asphalt mix. A triangular representation of requirements for the volumetric properties of asphalt mixtures is therefore a valuable method to illustrate the volumetric requirements. Such representation gives a better insight into the requirements and helps on decisions when authorities decide about these requirements.