The Automatic Drying Unit (ADU) provides a rapid drying method for compacted asphalt road cores that come from the jobsite wet and must be quickly analyzed for density. This equipment is ideal for same-day analysis of road cores to acquire data for correlation purposes, or to know if the asphalt placed that day meets specifications.
The ADU takes the place of drying the core samples in front of a fan or in a low temperature drying oven for several hours. The typical drying time is between 10 and 20 minutes, saving you hours of waiting. The core density can easily be determined within 30 minutes of arriving in the laboratory. The ADU can also dry loose aggregate or asphalt by using the bag provided with the unit.
Standard: ASTM D7227, AASHTO R79