Spalling or spalding concrete refers to concrete that has become pitted, flaked, or broken up. … The signs of spalling include a rough and flaky surface and breaking of some concrete chunks. This could be repaired by removing the damaged section so that it can be filled with cement.

What does spalling concrete mean?

Spalling is the flaking or peeling away of small particles of cement paste from the near-surface portion of the finished slab. … Finished concrete is often porous and can absorb rain water. Spalling occurs on exterior slabs when water that is trapped in the concrete goes through multiple freezes and thaws.

What does a concrete spalling look like?

Spalling concrete can look like round or oval depressions along surfaces or joints. Spalling tends to be most common in cold climates when de-icing chemicals are applied or when seasonal freeze-thaw cycles damage the concrete.