Expert Pressure & Power Washing in Newport News, VA

While asphalt is more economical per yard than concrete, it is not as durable a product and can move and crack over time. The amount of subgrade material needed to stabilize the asphalt can vary significantly based on the makeup of the soil. This will also add to the cost of the total project. Concrete is a little more expensive per yard for the raw material but requires less subgrade material. When installed properly to allow for expansion and contraction, concrete is more durable and will last for decades or longer.

Expansion from summer heat and contraction from winter cold can cause concrete to crack. For this reason, when properly installed, concrete will have expansion joints installed every 10 to 13 feet to allow for expansion and contraction without cracking. We typically use salt treated lumber for expansion joints in our driveways and sidewalks.

New concrete looks medium to dark gray when first installed. As the sun bleaches it out, the color will lighten to nearly white. This will take approximately a month. After that any stains that get on the surface can be removed with a mixture of half bleach, half water. Oil stains from parked vehicles can by removed with commercially available products. Alternatives to these products are standard kitty litter or oil dry that will soak up oil and then washing the surface with a solution of grease cutting detergent and water. For best results stains should be tackled when they are fresh. Over time the oil will penetrate deeper and be harder to remove.

Once concrete has cured to full strength, a clear sealer can be applied to the entire surface. This sealer will prevent oil and other materials from penetrating the surface. If spills or leaks occur, the sealer can be washed clean with detergent and water.

The biggest culprit to cracking concrete is tree roots growing under the surface. While large roots and occasionally entire trees will be removed before installing new concrete, homeowners should not allow new trees to be planted too close to the driveway in the future. Damage to your concrete can occur from road salts that are put down on bridges and overpasses during winter storms. Do not ever put these products on your concrete. They will cause pitting and destroy the look of the surface of your driveway. If you need to use a snow melting product, choose the pellets. These will dissolve over time and will not damage the concrete.