How to fix a sinkhole in a concrete driveway with different way
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• after that, add clayey sand. Another option is to grind the upper level slab down so that it becomes flush with the sunken slab, eliminating the trip hazard. Now clean the driveway thoroughly.
If your sinkhole is deeper than four inches, filling the base of the gap with concrete will create support.
This process is called concrete slab jacking and a professional concrete company is required. Run a wheel of your car over the spot a few times to compact it down. This process is called concrete slab jacking and a professional concrete company is required. Remove leaves and other debris from the driveway with a broom, leaf blower or shop vacuum.