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You can now verify the angle of gyration on your gyratory compactor quickly,
simply and accurately.
What is it?
The TMA is a new device developed by Troxler for use by the gyratory compactor
owners to verify and calibrate the angle of gyration. It is an external apparatus
that is totally passive and does not affect the operation of the compactor
under test.
How does it work?
Troxler has used a simple and traditional two-point measurement concept to
measure the mold angle since we started manufacturing the Model 4140, the
original SHRP Superpave™ Gyratory Compactor. The TMA uses a simple trigonometric
function to calculate the gyratory compactor angle. Because the TMA is secured
to the frame of the compactor, the angle is net of any frame deflection that
may occur due to resistance of the specimen to compaction. Angle measurements
can be made during the actual compaction process.
Benefits |
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Measurement of compaction angle dynamically and in real time |
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The two measurement points are separated to a distance that ensures an accurate mold angle measurement |
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This measurement technique conforms to the provisions of AASHTO T312 |
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Operates with standard 110 V ac power |
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Measure the angle any time as the mixtures are compacted |
| TMA Operator Manual Model 3190 (for Model 4140 Gyro) |
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| TMA Operator Manual Model 3191 (for Model 4141 Gyro) |
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