Asphalt Testing

Bending Beam Rheometer (BBR) is engineered to perform flexural tests on asphalt binder and similar specimens per ASTM D6648 and AASHTO T313. These tests consist of a constant force being applied to a specimen in a chilled bath in order to derive specific rates of deformation at various temperatures.

Bending Beam Rheometer

Bending Beam Rheometer
  • PID temperature controller with digital display
  • Two independent platinum RTDs for precise temperature control
    • Mechanical refrigeration system
    • External cooling unit with temperature controller
    • Provides test temperatures of -40o to 25o C (ethylene glycol mixture)

  • Three-point bend test apparatus
  • Stainless steel, durable, corrosion-resistant construction
  • Calibration hardware kit with carrying case
  • Meets ASTM and AASHTO test standards
  • Computerized control, data acquisition, and analysis
  • Integral LVDT and temperature-compensated 500 gram load cell

Step Disk and Calibration Gaging Kit

  • Step Disk
    • Prevents movement with detent locking mechanism
    • Highest level of accuracy with precision ball bearings allowing precise repeatability by having one point of contact

  • Calibration Gaging Kit
    • 5 step disk
    • Four 50g weights, two 2g weights
    • Certified confidence beam
    • Certified compliance beam
    • Carrying case

Click here to see the drawing!


BBR Upgrade Kit

  • Upgrades older ATS BBR’s
  • Calibration kit
  • Enhanced software

BBR Software & Reporting Features

  • Software package allows for device configuration, daily verifications, test setup, test initiation, and reporting
  • All test parameters can be revised according to ASTM/AASHTO standards for easily repeated performance
  • Two readings per second
  • Pre-load graph results before initial tests (digital)
  • The pre-test mode includes continuous contact between the loading shaft, anvils and specimen, and the applying and reapplying of 35mN and 980mN of force
  • Data acquisition system records and reports all raw data points, test specimen/setup data, and the test report standard ASCII can be recalled, printed, or imported to other software
  • Constant system error checking
  • Traceable “Test conditions” section
  • Indication of return to original load at the end of the test (daily verification and periodic calibration of the load cell, LVDT, and RTD transducers)
  • Includes program that verifies and eliminates device compliance from the specimen displacement measurements