Does Concrete Cure Evenly?

Curing times for concrete

Technically, concrete never stops curing. In fact, concrete gets stronger and stronger as time goes on.

Does concrete dry unevenly?

Concrete surfaces that are troweled too early will increase the water-cement ratio at the surface and lighten the color. Concrete which is not properly or uniformly cured may develop discoloration. Uneven curing will affect the degree of hydration of the cement. Curing with polyethylene may also cause discoloration.

Why does my new concrete look blotchy?

The culprits of blotchy concrete after sealing

The sealer was applied poorly. Not enough sealer was applied. The concrete itself had varying absorption rates.