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Concrete & Masonryaka: concrete vibratoraka: pokeraka: stingeraka: immersion vibrator

Vibrator

In Plain English

A tool that shakes freshly poured concrete to remove air bubbles and ensure it fills every corner and space around rebar.

Definition

An internal or external mechanical device that transmits high-frequency vibrations to freshly placed concrete to eliminate air voids and ensure complete consolidation around reinforcement and into form corners. Internal (immersion) vibrators are the most common type, with heads ranging from 1 to 6 inches in diameter. Vibrator insertion spacing should not exceed 1.5 times the vibrator head radius of action.

Example

The crew used two 2-inch vibrators simultaneously to consolidate the heavily reinforced column pour.

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