burganuae

AUTO-BBR: Automatic Bending Beam Rheometer

The AUTO-BBR is a sophisticated, fully automated testing system designed to determine the low-temperature flexural creep stiffness of asphalt binders. By utilizing a fluid-bath-free thermoelectric cooling system, it provides a precise, clean, and highly repeatable method for performance grading according to international standards.

Key Performance Features

  • Peltier Cooling Technology: Employs advanced thermoelectric cooling, eliminating the need for bulky external chillers or messy cooling fluids.
  • Fully Automated Test Cycle: A “set-and-forget” system that manages temperature stabilization, specimen loading, and data acquisition with a single command.
  • Superior Load Precision: Features a frictionless air bearing system and high-accuracy displacement transducers to ensure sensitive measurements of binder deflection.
  • Real-Time Data Visualization: The integrated software provides live plotting of load, displacement, and temperature throughout the entire test duration.
  • Compact & Ergonomic: Designed with a small laboratory footprint, featuring an easy-access testing chamber for quick specimen loading and cleaning.
  •  Technical Specifications
  • Standard Compliance: Fully conforms to AASHTO T313, ASTM D6648, and EN 14771 for binder stiffness evaluation.
  • Temperature Range: Maintains stable testing environments from -36°C to +25°C with high-precision control.
  • Loading System: Air-actuated piston capable of maintaining a constant 980 mN load with negligible friction.
  • Measurement Accuracy:
    • Displacement: 0.15 µm resolution.
    • Load: 2 mN resolution.
    • Temperature: 0.01°C resolution.
  • Data Connectivity: Equipped with dedicated PC software for automated calculation of Stiffness and m-value, with seamless export functions for laboratory reports.
  • Safety Features: Over-temperature protection and emergency shut-off controls integrated into the hardware.