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Bending Beam Rheometer (BBR)

ASTM D6648 | AASHTO T313 | EN 14771
Main features
  • Durable, corrosion-resistant construction
  • Computerized control, data acquisition and analysis
  • PID temperature controller with digital display
  • Two independent platinum RTDs for precise temperature control
  • Mechanically-refrigerated cooling bath with environmentally-safe non-CFC coolant
  • Integral LVDT and temperature compensated load cell for accurate test results
  • Includes complete calibration kit with carrying case
  • Includes ASTM/AASHTO-compliant specimen moulds
  • PC and software included
General description
General description
The Bending Beam Rheometer (BBR) test (see Figure 1) provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder’s ability to resist low temperature cracking. - See more at: http://www.pavementinteractive.org/article/bending-beam-rheometer/#sthash.NocVgDFH.dpuf
The Bending Beam Rheometer (BBR) test provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder’s ability to resist low temperature cracking.

The 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.
The Bending Beam Rheometer (BBR) test (see Figure 1) provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder’s ability to resist low temperature cracking. - See more at: http://www.pavementinteractive.org/article/bending-beam-rheometer/#sthash.NocVgDFH.dpuf
The Bending Beam Rheometer (BBR) test (see Figure 1) provides a measure of low temperature stiffness and relaxation properties of asphalt binders. These parameters give an indication of an asphalt binder’s ability to resist low temperature cracking. - See more at: http://www.pavementinteractive.org/article/bending-beam-rheometer/#sthash.NocVgDFH.dpuf

The Bending Beam Rheometer (BBR) System consists of a fluid bath base unit, a three-point bending test apparatus which is easily removed from the base unit for specimen loading and unloading, an external cooling unit with temperature controller, and a calibration hardware kit with carrying case. The system includes a PC and the testing software.
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Technical specifications

Models 81-PV5902
81-PV5904
Conforming
 to Standard
ASTM D6648
AASHTO T313
EN 14771
Machine control by PC (included) with dedicated software
Load Frame Integral stainless steel frictionless construction
Loading shaft In-line stailess steel with blunt point
Test Load Variable test range from 0 to 200 g standard.
System maintains required test load to within ±0.5 g throughout the  test cycle
Test Cycle Times Cycle times for pre-load, recovery, and test load are completely operator- adjustable
Load cell 500 g (temperature-compensated)
Mechanical overload
protection
Standard
Test weights Calibrated and traceable
Sample supports 25 mm (0.98 in.) diameter stainless steel spaced
101.6 mm (4.00 in.) apart
LVDT displacement
transducers
6.35 mm (0.25 in.) calibrated range to provide 2 μm resolution throughout testing and verification range
Testing Software Features Large on-screen display of load, displacement and bath temperature provides ease of setup and operation. Real-time displacement, loading, and temperature graphs are displayed during the test cycle and can be re-scaled as needed for easy viewing
Cooling Unit Included (non-CFC refrigerant)
Recommended Cooling
Bath fluid
Non-flammable ethylene glycol mixture
Operating temperature Ambient to -40° C (-40°F)
Temperature Measurement Platinum RTD
Compressed air requirement 0.34 MPa (50 psi) clean, dry air supply required
Weight approx. 115 kg

Ordering info

81-PV5902
Bending Beam Rheometer (BBR). 230 V, 50-60 Hz, 1 ph.

81-PV5904
Bending Beam Rheometer (BBR). 115V, 50-60 Hz, 1 ph.

Accessories

Spares

81-PV059/1

Extra aluminium beam mould. Set of five.

81-PV059/2
Silicone rubber mould, 2-gang.

Documents

Technology communication

Partner's Documents