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2 cards from this section. Quick, good the night before a test.
What does a rebound number above 40 indicate?
Think about the scale provided.
What is the purpose of the Ultrasonic Pulse Velocity Test?
Remember, it involves sound waves.
What does a rebound number below 20 indicate?
Look at the quality indicators from the tests.
True or False: Pulse velocity above 4.5 km/s indicates poor concrete quality.
Recall the threshold values for UPV.
If a construction site yielded a rebound number of 25 with an UPV of 3.5 km/s, assess the overall quality of the concrete and recommend actions.
Analyze what the numbers reflect about the integrity of concrete.
Discuss the potential consequences of failing to perform adequate NDT on a critical infrastructure project.
Consider what could happen if weak points in a structure are overlooked.
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