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Pressure WashingPressure washing your driveway can remove years of mildew, tree sap, and dirt to enhance the appearance of your concrete. Most importantly, we highly recommend pressure washing prior to sealing to remove any salts that may have accumulated in the pores of the concrete.
Salt in the pores react with the calcium hydroxide present in concrete creating calcium oxychloride (CAOXY). When CAOXY crystals expand it causes internal cracking and crumbling. The effects of salt damage are further amplified in the freeze-thaw cycles. For full protection, pressure washing followed by a concrete sealer is recommended. |
Devastating Effects of Salt Damage
Concrete spalling occurs when an unsealed driveway deteriorates from exposure to UV rays and salt. Sealers are a great way to protect concrete from spalling deterioration. A good-quality sealer designed for use on exterior concrete will help minimize water saturation and protect against salt damage.