Pitting, Flaking and Staining

Moisture does the most damage to concrete. It seeps into the pores of untreated concrete, and when temperatures drop, especially during freeze-thaw cycles, that trapped moisture expands as it turns to ice. This expansion destroys the pores and weakens the concrete. This results in concrete slabs that can pit and flake. Concrete’s porous nature also makes it prone to staining when left untreated.

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