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What Causes Concrete Spalling?

Spalling is when the concrete surface flakes, chips or breaks away, exposing the aggregate underneath. Several conditions can contribute.

Common contributors

Moisture and temperature cycles

Water inside the concrete that expands during temperature swings can push the surface off.

Finishing and curing

Over-troweling, sealing water into the surface or improper curing can weaken the top layer.

Salts and chemicals

Deicing salts and some cleaning chemicals can attack the surface.

Reinforcement corrosion

Corroding rebar close to the surface can push concrete off from underneath.

Repair considerations

Surface repairs

Patching can improve appearance and slow further damage, but the repair will be visible.

Full replacement

Widespread spalling with exposed reinforcement usually points toward replacement.

Frequently Asked Questions

Will spalling get worse?

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It often progresses if the underlying cause is not addressed.

Can spalled concrete be resurfaced?

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Sometimes, depending on how sound the underlying slab is. This is confirmed during an evaluation.

Request a Concrete Evaluation

Call (254) 414-0511 or use the estimate form to share your project details. We follow up to review your project and next steps.

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