ASTM D6648 • AASHTO T313

Load Frame Integral stainless steel frictionless construction
 Loading Shaft  In-line stainless steel with blunt point
 Test Load  Variable test range from 0 to 200g standard System maintains required test load within
±0.5g throughout the test cycle
 Test Cycle Times  Cycle times for pre-load, recovery, and test load are completely operator-adjustable
 Load Cell  500g (temperature-compensated)
 Mechanical Overload Protection  Standard
 Test Weights  Calibrated and traceable to NIST
 Sample Supports  25mm (0.98 in.) diameter stainless steel spaced 4.00 in. (101.6mm) apart
 LVDT Displacement Transducer  0.25 in. (6.35mm) calibrated range to provide 2um resolution throughout testing and verification
 Data Display  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-plotted and 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°F (-40°C)
 Temperature Measurement  Platinum RTD
 Power Requirements  115VAC 50/60Hz Standard 230VAC 50Hz Optional
 Compressed Air Requirements  50 psi (0.34 MPa) clean, dry air supply required
 Approximate Shipping Weight  250 lbs. (115kg)
  • Used to perform flexural tests on asphalt binder and similar specimens per ASTM and AASHTO.
  • These tests, initially developed by the Strategic Highway Research Program (SHRP), consist of a constant force being applied to a specimen in a chilled fluid bath in order to derive specific rates of deformation at various temperatures.
  • It consists of a fluid bath base unit, a three-point bend 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.
  • Additionally, the Bending Beam Rheometer has recently been redesigned according to the latest revisions of the relevant ASTM and AASHTO specifications. This new design includes updated and improved software as well as Özellikler that make the Bending Beam Rheometer safer, easier, and more accurate.
  • Recording of data points is now twice as accurate (two readings per second as opposed to one).
  • For verification that seating loads were within specifications, a graph shows the pre-load results before the initial tests and can be viewed Dijitally at a later time.
  • The pre-test mode includes continuous contact between the loading shaft, anvils, and speci- men, and the applying and reapplying of 35mN and 980mN of force.
  • All test parameters can be changed, so any future revisions to the ASTM/AASHTO Standarts can be accommodated.
  • The data acquisition system records all raw data points, test specimen/setup data, and the test report in Standart ASCII files that can be recalled, printed, veya imported into other soft- ware packages for further analysis veya custom reporting.
  • Constant system error checking ensures that the correct parameters have been set prior to test initiation, so specimens are not accidentally destroyed before running the test.