SC Bridges Practice Questions - South Carolina Bridges Contractor Examination Exam

When consolidating structural concrete with an internal vibrator, which practice is correct?

Insert the vibrator vertically, let it sink under its own weight, and withdraw it slowly Vibrate in one spot until a thick layer of paste and water stands on the surface Rest the vibrator against the nearest rebar so the steel transmits the vibration Use the vibrator to drag concrete horizontally along the forms

Correct Answer:

Insert the vibrator vertically, let it sink under its own weight, and withdraw it slowly

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