03 · Concrete Equipment

Jitterbug Tamper

Also called Jitty bug · Jitterbug · Concrete tamper · Grate tamper

A hand tamper with a mesh base that pushes coarse aggregate below the surface of stiff concrete.

Manual / non-powered

Overview

These concrete tampers, commonly called jitterbugs, push the coarse aggregate in a harsh mix below the surface to consolidate the concrete and embed the aggregate.

Only tamp low-slump concrete. In high-slump concrete the coarse aggregate sinks naturally, and tamping can cause the aggregate to segregate.

The jitterbug has a sturdy steel frame and a manageable base that gives the operator balance on the concrete and lets the work go quickly.

Best uses

  • Low-slump (stiff) concrete
  • Pushing coarse aggregate down before floating
  • Flatwork and slabs

Not suited for

  • High-slump (wet) concrete — tamping causes segregation

Troubleshooting

Surface turns soupy or wet after tamping

Checks to try, in order

  1. The mix is too wet for tamping. Stop tamping and move on to floating.
  2. Don't overwork the surface — a few passes is enough.

Reference draft — always follow the manufacturer’s manual.

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Safety

  • Wear rubber boots and gloves when standing in wet concrete.

For manual / non-powered

  • Inspect for damage before every use and never exceed the rated load.

Videos & links

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