Topcon mmGPS 3D Paver, Reference Manual

Page: 273 / 288

P/N 7010-0781
Appendix E
E-1
Glossary
A
Aggregate
Various hard, inert materials such as sand, gravel, pebbles, etc.
used as the bulk material in asphaltic mixes.
Angle of Attack
The angle that exists between the bottom of the screed and the
grade over which the screed is traveling.
Auger
The broad, spiral flange on a screed which rotates and spreads
paving material evenly in front of the screed.
Auger Shadows
The dark and light areas along the length of a mat surface caused
by the compaction of materials having different densities and
textures.
Automatic Grade and Slope Controls
Sensing equipment used on paving machines to set and maintain
proper elevations and percent slope. The mmGPS 3D Paver
system provides paver operators with automatic grade and slope
control.
B
Bail
A wire frame added to the Tracker that acts as a fixed target to
compensate for rapid air temperature changes.