Troxler Electronic Laboratories, Inc.

Model 5151 - Automatic Drying Unit (ADU)



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. Pushing the Start button activates the vacuum pump, which draws the air out of the sample chamber. After the air is evacuated, the water is then drawn out of the sample. The attached heating mechanism keeps the sample close to room temperature.

The Automatic Drying Unit gives you these proven advantages: Dry cores and loose aggregate in less than 30 minutes One-button operation Self-driven and easy-to-follow software Simple maintenance with annual reminders All data is easily accessible Forty years of Troxler experience and a twelve month warranty give you the confidence you need in your field testing equipment The ADU complies with ASTM standard D-7227 and standard AASHTO PP75.

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