Understanding the causes of concrete deterioration helps you catch minor surface damage before water reaches the sub-base and causes widespread slab collapse.

• Surface Scaling and Flaking: Chipping away of the top concrete layer, exposing coarse aggregate underneath.

• Open Structural Cracks: Fissures wider than a hairline running across driveway slabs, garage floors, or aprons.

• Sunken Slabs and Trip Hazards: Slabs dropping below adjacent sections due to sub-soil erosion or poor base compaction.

• Pitting and Pop outs: Small conical holes in the concrete surface caused by expanding soft aggregates or frost action.

• Crumbled Slabs Edges: Broken edges along expansion joints or slab perimeters where heavy loads concentrate.

Deicing salts, freeze-thaw cycles, and improper original water-to-cement ratios are the leading causes of concrete failure throughout the Twin Cities area. When salt water penetrates porous concrete surfaces and freezes, internal hydraulic pressure strips away the top paste layer.

Ignoring damaged concrete allows water to enter sub-grade soils, eroding support under the slab and causing extensive cracking. Professional concrete repair fills cracks, lifts settled slabs, and seals the surface against chemical and weather attack.