4–18
THIN LAYER MODE
To measure the density of a top layer of asphalt, follow the steps
below. When taking counts after a core has been removed, Troxler
recommends averaging four one-minute readings taken around the
core site, as shown in Figure 4–10. If no core has been removed,
place the gauge over the test site, as shown in Figure 4–11.
✓
Prepare the test site as described on page 4–9 for a backscatter
measurement.
✓
Press the
〈
Take a Reading
〉
button on the RoadReader Plus
main menu (see Figure 3–11).
✓
The PDA displays
Position the gauge for count 1 out of
X and click OK
, where
X
is the selected number of readings
per site.
Figure 4–10. Gauge Positioned Around a Core Site
(If Core Has Been Removed)
Summary of Contents for Enhanced RoadReader Plus 3451
Page 7: ...Model 3451 vii NOTES...
Page 17: ...xvi NOTES...
Page 29: ...1 12 NOTES...
Page 33: ...2 4 Figure 2 1 Effect of Moisture on Depth of Measurement...
Page 85: ...4 22 NOTES...
Page 106: ...Model 3451 6 3 Figure 6 1 Offset Menu 6 OFFSETS CALIBRATION...
Page 114: ...Model 3451 6 11 Figure 6 10 Moisture Offset Erase Prompt 6 OFFSETS CALIBRATION...
Page 131: ...6 NOTES...
Page 141: ...7 10 Figure 7 5 Project Data Spreadsheet...
Page 145: ...7 14 Figure 7 8 Project Setup Display Figure 7 9 Standard Counts Display...
Page 147: ...7 16 Figure 7 10 Project Status Display Figure 7 11 Source Decay Display...
Page 149: ...7 18 Figure 7 12 Stat Test Display Figure 7 13 Drift Test Display...
Page 153: ...7 22 NOTES...
Page 166: ...Model 3451 Appendix A 13 Figure A 3 Cleaning the Sliding and Fixed Blocks...
Page 174: ...Model 3451 Appendix A 21 NOTES...
Page 175: ......
Page 183: ...Appendix B 8 NOTES...
Page 221: ...Appendix D 6 NOTES...
Page 223: ...Appendix E 2 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 225: ...Appendix E 4 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 227: ...Appendix E 6 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 229: ...Appendix E 8 STANDARD COUNT LOG Gauge Serial Number Date Moisture MS Density DS1 Density DS2...
Page 235: ...Appendix G 4 NOTES...
