ABSTRACT
ABSTRACT: In the 1950’s the Barber Greene Company studied aggregate dryers in an effort to understand thermodynamics involved with producing Hot-Mix Asphalt (HMA). To reduce variables, they recirculated aggregate feed and metered water onto completely dry material. Efforts today to measure energy savings at asphalt plants are similarly challenged to accurately measure properties that can easily vary over the period of investigation: aggregate moisture, exit temperatures, process rates, and etc.
