I have a crack across the entire front of my garage floor. I believe that the crack was caused by a poor drainage issue that has been corrected. The drainage issue also caused the pavers in front of the garage to sink.
Although I believe the drainage issue was fixed, I'm not terribly confident in the base under the cracked concrete or the pavers. Would a complete cut-out of the cracked area (probably about 12 inches by 20 feet), repair of the base and replacement of the cracked area be the better of the two options given the base may (or may not) be compromised?
What is the best way to fix the garage floor? Should I cut out about 12 inches of concrete (between the pavers and the main garage floor), tie into the existing floor with rebar and then pour new concrete? Is there a better solution? Is this a DIY project or should I hire a professional? I have some (although limited) experience with concrete.
Edit 20230117 Just as a follow-up for anyone who might have a similar situation. I ended up using a grinder with a masonry disc to make the thin cracks a bit bigger and then filled the entire crack with Polymer Modified Structural Concrete Repair sold at Home Depot. It has held up reasonably well so far. Thanks for all the help.