HomeJobsite: Dealing with Concrete JointsWhen the control joints are too far apart or there are no joints at all the concrete will develop its own joints. These cracks usually will quarter the slab between other joints.

When the control joints are too far apart or there are no joints at all the concrete will develop its own joints. These cracks usually will quarter the slab between other joints.

Active concrete joint that was prepared only to find movement.
When the control joints are too far apart or there are no joints at all the concrete will develop its own joints. These cracks usually will quarter the slab between other joints.
Concrete cracks that are wider than .035” lose their aggregate interlock and are potential problems waiting to happen.
A concrete slab being readied for preparation at many of the control joints.

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