Pavetest Bending Beam Rheometer (BBR)


PG grading for asphalt is the way to categorize binder based on the suitability to use it in different climates. BBR can assess the binder performance in colder areas. It applies a constant load to the binder sample and measures the deflection of the binder beam at certain temperatures. The flexural stiffness and other parameters will be calculated to identify the performance of the binder at low temperatures.

This machine is servo-controlled and is suitable both for PG-grading routine tests and research.

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Pavetest BBR: Precision in Asphalt Binder Testing

The Pavetest BBR stands as a state-of-the-art thermoelectrically-cooled bending beam rheometer designed for assessing the flexural creep of asphalt binders within a temperature range from ambient to -40 °C (± 0.03 °C).

This innovative equipment employs a miniature servo-controlled actuator to apply loads of up to +/- 10N at a loading frequency ranging from static to 25Hz. Remarkably, no compressed air supply is required. The servo-control feature eliminates the need for frequent calibration and repeated adjustments of air-bearing pressures. Simply input the desired load, and the servo-controlled actuator ensures precise application and maintenance of the requested load.

Temperature regulation is achieved with exceptional precision through a temperature controller located on the machine’s front. Users can set the bath temperature either using the controller or through the software. The BBR comes complete with a suitable chiller to guarantee a temperature range between ambient and -40°C. At the core of the system lies Pavetest’s industry-leading Control and Data Acquisition System (CDAS) along with the globally acclaimed TestLab software.

Key Features:

Flexural creep testing of asphalt binders
Low-temperature characterization of crack seal under load
Complies with EN 14771, ASTM D6648, AASHTO T313, SHRP Binder Provisions for Low Temperature Flexural Creep Testing of Asphalt Binders.
Experience precision and reliability in asphalt binder testing with Pavetest BBR.

Additional information

Weight 78 kg
Dimensions 60 × 60 × 65 m