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3 cards from this section. Quick, good the night before a test.
What is the primary function of surface vibrators in concrete?
Think about what happens to solid materials when they are vibrated.
Name one type of surface vibrator discussed.
Consider tools that finish and consolidate concrete simultaneously.
What is the primary limitation of surface vibrators compared to internal vibrators?
Consider the level of workability in concrete mixes.
True or False: Surface vibrators can effectively consolidate concrete deeper than 150 mm.
Recall the maximum effective depth discussed in class.
A concrete contractor is tasked with pouring a slab that is 200 mm thick and heavily reinforced. Discuss the viability of using surface vibrators in this scenario, support your reasoning.
Remember the depth limitation discussed in class.
Create a plan for consolidating a high-workability concrete mix with a slump of 90 mm using surface vibrators. Discuss the potential challenges and propose alternative methods.
Recall the guidelines regarding workability mentioned in class.
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