Spalling Concrete: What It Is and How to Fix It

If you have ever walked across a driveway, sidewalk, or concrete floor and noticed parts of the surface chipping or flaking away, you have seen spalling concrete. It is a common problem that affects everything from small patios to large reinforced concrete structures like bridges and parking garages. Spalling occurs when a layer of concrete begins to break away from the concrete surface. Common causes include freeze-thaw cycles, de-icing salts and chloride, improper curing or poor-quality concrete mix, carbonation and chemical reactions, and environmental conditions. Repair options range from surface-level resurfacing for shallow spalling, to medium repairs using polymer-modified cement or epoxy, to full structural repairs when rebar is exposed. Preventive measures include applying a high-quality sealer, waterproofing treatments, using sand instead of de-icing salts, ensuring proper curing, and maintaining good drainage. A-Core Concrete has the tools, knowledge, and experience to handle spalling repairs. With 15 locations across 10 states, A-Core provides expert concrete services nationwide.