AASHTO M 156-13 (2021) PDF Download

AASHTO M 156-13 (2021) is a standard specification that outlines the requirements for mixing plants used in the production of hot-mixed, hot-laid bituminous paving mixtures. This standard provides guidance for plants that produce both hot mix asphalt (HMA) and warm mix asphalt (WMA) paving mixtures. It is designed to serve as a reference for state certification or for inclusion of an asphalt mixing plant on an agency's approval list.

The standard emphasizes the importance of meeting the specific requirements set forth by the relevant agency or authority. While the standard establishes a baseline for mixing plant specifications, it acknowledges that additional requirements may be necessary based on the unique needs and regulations of the agency.