TE-BBR Instruction and Operation Manual
Test Asphalt Binder Samples
After preparing the TE-BBR instrument for testing and completing the confidence test, follow the
procedure below to test asphalt binder samples:
1. Check the bath temperature to ensure it is at the desired test temperature. If not, follow the
procedure in section Prepare the Temperature Bath; input the desired temperature using the
Bath option from the Instrument Setup menu. Make sure that temperature control is enabled.
Wait until the temperature has stabilized at the desired level before proceeding with the next step.
Set the switch on the Control Unit to LOCAL.
2. Use tongs to place the thick 6.35 mm (¼") steel beam carefully on the supports and slowly lower
the shaft until it touches the beam.
3. Adjust the Control Unit ZERO pressure dial until the load reading shows the desired contact load
of 35 mN ± 10 mN.
4. Switch to the LOAD mode (Control Unit front panel) and adjust the LOAD regulator until the
computer display reading for the load is 981 ± 50 mN.
5. Switch back to ZERO and check to see if the shaft has drifted up off the beam. If it has, repeat
steps 3-4. If not, proceed to step 6.
Testing the Specimen
6. Use tongs to remove the thick steel beam from the bath.
7. To initiate the software-driven test procedure, click on Run a New Test from the Test menu
options. Or click on the BBRw software toolbar.
8. Enter preliminary test information from the Test Setup dialog and click on OK.
9. Set the LOCAL/REMOTE switch to the REMOTE setting.
10. Follow the software prompts to complete the test.
During the test, the deflection/force values are plotted on a graph on the computer screen. At the
conclusion of the test, the screen display will change to the Report view. At the end of the loading
period, there is an automatic return to zero load condition.
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