How Long Does it Take for a Concrete Driveway to Dry?

Proper Weather

• In addition to not using the surface, curing involves maintaining the right temperature and moisture level so the hardening crystals in the concrete will react with the cement. Wait to install the driveway until temperatures are between 60 and 90 degrees Fahrenheit. If temperatures drop below 40 degrees Fahrenheit, wet concrete will not set-up correctly unless it is tailored for a cold weather pour.

Hydration

• Once the driveway is poured, it's important to maintain a consistent level of moisture on the surface. Hydration is a process in which moisture seeps into the concrete and encourages the particles within the mix to grow. While adding too much water creates a sand-like consistency on the surface that can peel and chip, too little water causes a weak surface to chip and crack.

Slow-Dry

• Slow-drying concrete is simple to do. It extends the drying time of a typical 5 to 8-inch thick concrete driveway by several days. The best way to slow-dry is to lay straw or a moist, breathable material like burlap or concrete over the surface, and sprinkle the material lightly with a hose a few times a day to keep it moist. Plastic is also used, but it can cause blotching on an outdoor surface because it doesn't allow for air flow.

Standard Dry Times

• Poured concrete develops half its strength after 10 days and complete strength after 27 days. It takes about two days for a 4 inch concrete walkway to dry enough to support foot traffic. The drying time for a driveway is longer because driveways are thicker and exposed to heavier weight loads and daily use.