Groovers

Jointing the concrete is accomplished by grooving tools (unless the slab will be sawcut later). The purpose is to control the location of cracks that may form when the slab "contracts" due to drying shrinkage or temperature changes.

Marshalltown Groover
Video: Concrete Groover

Length- 03:21

Look inside tooled joints or sawcuts and you will see the concrete is cracked—The joint did its job and controlled where the concrete cracked.

Joints are most often hand-tooled into sidewalks, driveways and patios and sawcut into floors, highways, and city streets.

Get more information on joint layout and required joint depths.

Review Groovers by Marshalltown Trowel

More info: See our section on Concrete Admixtures for tips on controlling drying shrinkage cracking, and hot weather and cold weather concreting.

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