The Pavetest BBR is a thermoelectrically-cooled bending beam rheometer designed for precise testing of the flexural creep of asphalt binders at low temperatures, from ambient down to –40 °C (± 0.03 °C).
Load application is performed via a miniature servo-controlled actuator, capable of up to ±10 N with loading frequencies from static to 25 Hz, without requiring compressed air. The servo-control system eliminates the need for frequent calibration and air-bearing adjustments, ensuring precise, stable load application throughout the test.
Temperature control is highly accurate, using an integrated temperature controller on the front panel or via the TestLab software interface. The system includes a dedicated chiller, maintaining consistent temperatures from ambient to –40 °C.
The CDAS2 Control and Data Acquisition System forms the backbone of the BBR, enabling comprehensive, real-time data acquisition, precise control, and advanced analysis of asphalt binder behavior under low-temperature flexural loading.
Common applications
