![]()
|
HOW TO REPAIR AND MAINTAIN ASPHALT SURFACES It costs about the same to install asphalt or concrete. Asphalt is easier to repair while concrete withstands temperature, wear and time better than asphalt. Protect and waterproof asphalt surfaces every 2-4 years with a seal coat; it gives a fresh, new look to asphalt. Importantly, seal coating protects the asphalt from sun and moisture damage; it provides a seal to keep out grease, oil and gasoline drips and other damaging substances from eroding the asphalt. A sealer will fill hairline cracks that are too small for individual repairs. The following procedures can be used on blacktop, asphalt, chip seal or macadam driveways, tennis and basketball courts and similar asphalt surfaces. Prior to performing any repairs and maintenance on asphalt, prepare the area. About a week before, place a weed killer in the cracks and remove the weeds; repeat as needed to effectively remove the weeds. After killing the weeds, sweep away dirt and organic matter from the surface, remove oil or grease by washing with a detergent or cleaner. Lastly, hose the area with water and allow it to dry thoroughly. Check the asphalt for cracks, depressions and holes; repair these areas prior to applying a seal coat. CRACKS: Fill any cracks as soon as possible to keep water from penetrating the asphalt and eroding the soil beneath. Generally speaking, cracks that are one (1) inch and wider should be filled with an asphalt cold mix. Narrower cracks are treated with a semi-liquid crack filler. Place sand in the crack to within an inch of the top surface. After applying the crack filler, use a putty knife or similar tool to level the filler to the edge.
Be sure to allow any repairs to the asphalt to bind and cure for 2 to 3 months before applying a seal coating. Pour water over the area; it is ready when no oil film forms on the water. SEAL COATING: When applying the seal coat, do not allow the sealer to puddle and do not spread it too thin. To increase traction on sloped areas, sprinkle sand over the sealer. Excess sand that is not absorbed into the seal coat can be swept off later. Allow the sealer to cure for 24 hours undisturbed. Apply a second seal coat within a few days. |
|||||||||||||||||||||||||||||||||||||||