SC Water And Sewer Plants Practice Questions - South Carolina Water And Sewer Plants Contractor Examination Exam

What is the purpose of internal vibration when placing tank-wall concrete?

To drive out specified entrained air so the mix is as dense as possible To consolidate the concrete, fill around reinforcement, and remove large pockets of entrapped air To add water uniformly through the lift To finish the exterior surface so a float is not needed

Correct Answer:

To consolidate the concrete, fill around reinforcement, and remove large pockets of entrapped air

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