In climates where road de-icing salts are used, concrete parking garage slab deterioration can be a significant maintenance cost. Deterioration occurs in garages as vehicles carry in snow and ice that has been treated with de-icing salts. Slab deterioration is a cyclical problem that can start out small and become significant with time. Slab deterioration is typically related to concrete cracking, which allows water to reach and corrode the slab reinforcing steel. Reinforcement corrosion is greatly accelerated when de-icing salts are used.