The BBR provides low temperature stiffness and relaxation properties of asphalt binders.
Standards ASTM D6648 AASHTO T313 EN 14771
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) 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.
The Bending Beam Rheometer BBR can be used as part of your Superpave performance based testing program.
Bending Beam Rheometer (BBR)conforming to ASTM D6648, AASHTO T313 and EN 14771. 230V/50-60Hz/1ph
Bending Beam Rheometer (BBR) conforming to ASTM D6648, AASHTO T313 and EN 14771. 110V/60Hz/1ph
| 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 |
DSR performs the critical rheological characterization analysis required for PG grade.
Standards AASHTO M320 ASTM D4402 AASHTO T316 EN 13302 AASHTO T315 ASTM D7175 ASTM D7405 EN 14770
Dynamic Shear Rheometers (DSR) performs the critical rheological characterization analysis required for SuperPave Performance Grade (PG) classification of asphalt binders. The DSR test uses a thin asphalt binder sample sandwiched between two circular plates. The lower plate is fixed while the upper plate oscillates back and forth across the sample to create a shearing action.
The 81-PV6102 and 81-PV6202 DSR models perform SuperPave performance grading according to AASHTO T315 and ASTM D7175, Viscosity determination of asphalt binder in according to AASHTO T316 and ASTM D4402 and determine Multi Stress Creep Recovery (MSCR) according to AASHTO T350 and ASTM D7405.
Affordable, robust and accurate, the new DSR offers the following benefits:
DSR tests are conducted on unaged, RTFO aged and PAV aged asphalt binder samples. The binder behavior under various temperature and loading conditions is analyzed to predict its performance at anticipated climatic conditions.
Dynamic Shear Rheometer (DSR), standard model, conforming to EN 14770, ASTM D7175, ASTM D 4402, D7405, AASHTO TP70, T350, M332, T315, M320.110-230V/50-60Hz/1ph
Dynamic Shear Rheometer (DSR), advanced model, conforming to EN 14770, ASTM D7175, ASTM D 4402, D7405, AASHTO TP70, T350, M332, T315, M320.110-230V/50-60Hz/1ph
| RHEOMETER | 81-PV6102 | 81-PV6202 |
| Torque Range | 0,1 to 150 mNm | 0,1 to 150 mNm |
| Torque resolution | 0,001 mNm | 0,001 mNm |
| Speed Range | 0 to 2000 rpm | 0 to 2000 rpm |
| Speed Resolution | 0,015 rpm | 0,015 rpm |
| Viscosity Range, RN general | 1 to 1 x 1010 mPas | 1 to 1 x 1010 mPas |
| Viscosity Range, plate P3 | 1 x 102 to 1 x 108 mPas | 1 x 102 to 1 x 108 mPas |
| Viscosity Range, plate P4 | 5 x 103 to 1 x 1010 mPas | 5 x 103 to 1 x 1010 mPas |
| Complex Shear Modulus, plate P3 | 0,1 to 2 x 104 kPa | 0,1 to 2 x 104 kPa |
| Complex Shear Modulus, plate P4 | 20 to 4 x 106 kPa | 20 to 4 x 106 kPa |
| Phase Angle Range | 0 to 90° | 0 to 90° |
| Frequency | 0,001 to 100 Hz | 0,001 to 100 Hz |
| Normal Force Range | – | -30 to 30 N |
| Normal Force Resolution | – | 0,01 N |
| Automatic Gap Setting | No | Yes |
| Gap Resolution | – | 1 μm |
| TEMPERATURE CONTROL UNIT | ||
| Maximum Temperature | 150°C | 180°C |
| Minimum Temperature | -10°C | -15°C |
| Temperature Accuracy | ≤ 0,1 K Range 5°C to 90°C | ≤ 0,1 K Range 5°C to 90°C |
| Interface | USB 2.0 | USB 2.0 |
SOFTWARE MANAGER
