Answer: You can probably salvage some of the materials. Some pavers are set in sand and others in concrete. Rehab will be much easier if they are set in sand, but not impossible if set in concrete. The plan is to even out the gravel/sand base beneath the pavers which means prying them up, filling in the low spots and then resetting the pavers. Individual pavers can be removed and reset after placing builders sand in the voids; concreted pavers will either have to be freed by breaking the concrete between the pavers or by prying up a group of them all at one time. I vote for using a chisel and chipping away at the concrete so the pavers come up individually. Replace the sand/gravel base and then chip the excess concrete away from the pavers and reset them. Good luck with your project.
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