Partial-Depth Repair

The purpose of partial-depth patching is to restore localized areas of deterioration that do not extend through the slab. The most common problem is spalling, but partial-depth repair can also be used for small areas with severe scaling. Partial-depth patches are acceptable for most surface problems at joints, cracks, and midslab locations that are within the upper one-third of the slab.

Partial-depth patches are usually very small. Each patch usually covers an area less than about 10 square feet. They are often only 2-3 inches deep.

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