Most concrete failures trace back to the base, the mix, or the cure. Here are the common problems, their causes, and the early sign to call a concreter. Catch it early and you save the whole slab.
01.
A weak or uneven base, missing control joints, or a slab poured too wet.
Fine or widening cracks across a slab or driveway, often between joints.
02.
Freeze-thaw cycles, de-icing salts, or an over-troweled top layer.
The surface pits, flakes, or peels to expose the gravel beneath.
03.
Poorly compacted fill or an eroded base letting a slab drop and tilt.
A slab section that has sunk, leaving a lip or trip hazard.
04.
Frost, tree roots, or expansive soil pushing a slab up from below.
A section lifted higher than its neighbors, cracking joints and edges.
05.
Uneven curing, extra water, or moisture pulling salts to the surface.
Blotchy color or a white, powdery film on the surface.
06.
A slab poured without the right slope, so water sits instead of draining.
Puddles that linger on a patio or driveway long after the rain stops.