We tear out a lot of driveways in Indianapolis that are barely fifteen years old. Almost none of them failed because of bad concrete. They failed because of what was — or wasn't — underneath them, and because nobody controlled where the slab was allowed to crack.
Start with the base. Concrete is strong in compression and weak in tension, which means it needs uniform support underneath. Four to six inches of compacted stone gives the slab something that will not settle unevenly. Pouring straight onto graded dirt saves a few hundred dollars on day one and costs you the whole driveway inside a decade.
Thickness is not optional. A residential driveway should be four inches minimum, and five to six inches anywhere a truck, RV, or dumpster will sit. The garage apron takes the most concentrated load of anywhere on the drive and is the first spot to break when it was poured thin.
Control joints decide where cracks go. Concrete will crack — that is not a defect, it is what concrete does as it shrinks while curing. Joints cut to a quarter of the slab depth, spaced roughly two to three times the slab thickness in feet, give that movement a place to go. Joints cut too shallow, too late, or too far apart just move the crack somewhere you have to look at.
Freeze-thaw is the Indiana multiplier. Water gets into the surface, freezes, expands, and pops the top layer off — that is the flaking and scaling you see on older drives. Air-entrained mix, a properly finished surface that is not overworked, and staying off de-icing salt for the first winter all make a real difference.
Do not seal too early and do not use the wrong salt. New concrete needs to cure before it gets sealed, and rock salt and calcium chloride are hard on a fresh surface. Sand for traction through the first winter, then seal on a normal schedule after that.
Drainage finishes the job. Water that sits on a slab or runs back toward the house will find its way into every joint and crack. Slope matters as much as thickness, and it costs nothing extra to get right at pour time.
Want a driveway built this way? Call JFC Concrete LLC at (317) 666-1388 for a free written estimate anywhere in the Indianapolis metro.