Jitterbug

Definition

A jitterbug is an aggregate tamper used in concrete finishing to push coarse aggregate slightly below the surface of a slab.

Purpose

The primary purpose of a jitterbug is to create a smoother and more workable surface for concrete finishing by settling the coarse aggregate below the surface. This allows for easier troweling and a more uniform finish.

Examples of Use

1. Concrete Slabs: In the construction of concrete slabs, a jitterbug is used after pouring the concrete to ensure a smooth finish.
2. Sidewalks and Driveways: During the finishing process of sidewalks and driveways, a jitterbug helps achieve a consistent surface that is easier to finish.
3. Concrete Floors: For large concrete floor areas, a jitterbug is used to ensure the surface is prepared for final finishing techniques.

Related Terms

• Concrete Trowel: A tool used to smooth and finish the surface of concrete.
• Bull Float: A tool used to level and smooth concrete after it has been poured.
• Concrete Screed: A tool used to strike off excess concrete to bring the surface to the desired level.

Notes

Using a jitterbug correctly requires skill and timing, as improper use can lead to issues such as segregation of the aggregate or an uneven surface. It is an essential tool in achieving a high-quality concrete finish.