|
<< Click to Display Table of Contents >> Viscosity Information Tab |
  
|
|
<< Click to Display Table of Contents >> Viscosity Information Tab |
|
This tab is used to specify the test data and show the test results.
The following can be entered and displayed on this tab:
Units
Temperature: This is used to select the temperature units for the test.
Density: This is used to select the density units for the test.
Kinematic Viscosity: This is used to select the kinematic viscosity units for the test.
Absolute Viscosity: This is used to select the absolute viscosity units for the test.
Data
Sets of data measurements can be added and deleted using the Add Set and Delete Set buttons. Each set of measurements consist of the information below.
Set: This is the set number. It is automatically filled in by the program.
Temperature: This is the temperature for this measurement it is either 60°C (140°F) or 135°C (275°F). The 135°C (275°F) temperature can be used to calculate the kinematic viscosity at 135°C (275°F).
Calibration Constant: This is the calibration constant for the measurement. Specify the calibration constant of the viscometer used for the measurement.
Time: This is the flow time required for the leading edge of the meniscus to pass from the first timing mark to the second. If the flow time is less than 60 s a viscometer with a smaller diameter should be used.
Viscosity: This is the calculated kinematic viscosity for the measurement. Obtained by multiplying the time and calibration constant.
Results
Kinematic Viscosity at 60°C (140°F): This is the calculated kinematic viscosity at 60°C (140°F). If more than one measurement is made at this temperature it is the average of the calculated viscosities.
Kinematic Viscosity at 135°C (275°F): This is the calculated kinematic viscosity at 135°C (275°F). If more than one measurement is made at this temperature it is the average of the calculated viscosities.
Use Bulk Specific Gravity: The specific gravity can either be specified or determined from a previous bulk specific gravity test. Check this box to use the bulk specific gravity from a previous specific gravity test. If there is no previous bulk specific gravity test for this sample, this box will not be shown.
Specific Gravity: If the User Bulk Specific Gravity box is checked this is the previously determined specific gravity, otherwise this is used to specify the specific gravity of the bitumen at either 25°C (77°F) or 15.5°C (60°F). It is used to calculate the density.
Density at 135°C (275°F): If the specific gravity is specified the density of the bitumen at 135°C (275°F) is calculated.
Absolute Viscosity at 135°C (275°F): If the density is calculated the absolute viscosity at 135°C (275°F) can be calculated.