AASHTO M 323-17 PDF Download

The AASHTO M 323-17 standard outlines the guidelines and requirements for producing a hot-mix asphalt (HMA) job-mix formula using aggregate and mixture properties. The purpose of this specification is to ensure that the resulting HMA meets the desired performance characteristics and durability for a given application.

The standard provides details on the materials required for the mix design, including aggregates, asphalt binder, and mineral filler. It defines the testing methods and criteria for evaluating the properties of these materials, such as gradation, asphalt binder content, binder viscosity, and specific gravity. The specification also outlines the procedures for designing and proportioning the mixture to achieve the desired volumetric properties.

Furthermore, this standard emphasizes the use of the Superpave method, which is a performance-based approach to mix design. It takes into account factors such as traffic loading, climate conditions, and pavement distresses to determine the optimal mix design parameters. Superpave volumetric mix design aims to improve the durability and performance of HMA, resulting in longer-lasting and higher-quality pavements.