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Glossary
120
P-32+ and P-32 Operator’s Manual P/N: 1001547-01
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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 Feed Controls
The dual feed system on a paving machine used to maintain a constant head of material in front of the screed.
Automatic Grade and Slope Controls
Sensing equipment used on paving machines to set and maintain proper elevations and percent slope. The Topcon
P-32 System provides paver operators with automatic grade and slope control.
B
Bitumen
A thick, viscous, petroleum-based substance used as a bonding agent in asphaltic mixes.
Bail
A wire frame added to the Tracker that acts as a fixed target to compensate for rapid air temperature changes.
C
Calibration
Setting the elevation reading or Slope Sensor reading to match the actual position of the screed.
Compaction
To press tightly, thereby increasing the density of paving material.
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