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Concrete can cure in 24 hours if the temperature remains above 40 degrees, but it might take up to 48 hours for the initial curing if the temperature drops close to freezing. You can speed up the curing process in cold weather by using accelerants, or you can insulate the slab or enclose and warm the area with heaters.

A concrete driveway lasts between 25 and 30 years on average, and that's only with proper maintenance. The longevity of a concrete driveway also depends on the method and quality of installation, as well as your local climate. If your driveway gets a lot of wear and tear from several vehicles—especially heavy ones like trucks and RVs—your driveway will last less than the typical 25- to 30-year lifespan.

The most common cause of concrete cracks is shrinkage when the concrete hardens and cures. The stress from the shrinkage exceeds the concrete’s strength. Concrete cracking can also occur when it experiences extremely cold or hot temperatures, such as a particularly harsh winter or a firepit built into a concrete patio.

Yes, you can put too much rebar in concrete. Too much reinforcement can cause strain in the concrete, leading to cracking. Air pockets can also form in the gaps between rebar when concrete fails to fill the space properly. The placement and installation of rebar is a specialized skill, so consult an experienced pro before proceeding.