Every concrete slab cracks eventually — that isn't a defect, it's what concrete does as it cures and as the ground under it moves. The real question is whether the cracks land where somebody chose them, in a straight cut line you barely notice, or whether they wander across the middle of your new patio.
The Front Range makes that question sharper than most places. We swing above and below freezing repeatedly through the winter, sometimes within a single day. Water gets into the concrete, freezes, expands, and pushes. Do that a few dozen times a season and any weakness in the pour turns into a visible failure.
Three things carry most of the load. First, the base: compacted properly, the slab is supported evenly, and evenly supported concrete doesn't flex. Skip that and you have a bridge over soft spots. Second, reinforcement, sized and placed for what the slab has to carry — a driveway with a truck on it is not a garden path. Third, control joints, cut at the right depth and spacing, which is simply deciding in advance where the crack is allowed to go.
Drainage is the quiet fourth. Concrete that sheds water lasts; concrete that ponds it is being soaked and frozen on a schedule. That is why we look at grade before quoting rather than after pouring.
Planning a driveway, patio or slab? Call Rock Paper or Scissors at (405) 952-7575 and we'll walk the site with you.
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Rock Paper or Scissors covers Greeley and the Front Range. Tell us about the job.