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2 cards from this section. Quick, good the night before a test.
What is the primary function of a surface vibrator?
Think about how vibrations help in making concrete denser.
Name the first step in the concrete finishing process.
It's the first operation that levels the concrete.
Which type of vibrator is primarily used where internal access is limited?
Think about working conditions for each type.
True or False: Troweling should be done before the final set of concrete.
Consider why timing is critical in finishing.
A construction site is using both surface and internal vibrators for a concrete slab. The slab is 200 mm thick. Identify potential issues that may arise, and recommend appropriate solutions.
Consider thickness limitations of vibrators.
During troweling, the equipment operator notices that the blade angle exceeds 1 inch above the concrete surface. What outcomes could occur, and how can this be corrected?
Think about how pressure affects concrete integrity.
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