Many homeowners have witnessed their attractive cement driveways become riddled with cracks. The cracks are not only unsightly, but can be dangerous if they are large; therefore, fixing and sealing the deformities is essential. A variety of issues, including weather and abuse, can contribute to driveway cracks. Fortunately, you don’t have to dig up and repair your entire driveway to fix the issues; you can cover and seal the cracks with the help of a few tools and materials.
Things You'll Need
- Concrete-patching compound
- Caulk gun
- Cold chisel
- Concrete adhesive
- Premixed gravel concrete
- Large bucket
- Plastic sheeting or boards
- Concrete sealant
- Paint roller
Insert a container of concrete-patching compound into a caulk gun, if the crack is less than ¼ inch wide. Point the tip of the gun into the crack and push on the gun to release the compound into the blemish. Smooth any excess compound coming through the crack with a trowel. Move the trowel along the compound until it is level with the driveway. Pour enough water on the compound to make it moist. Continue to apply the water during the week. Keeping the compound moist will help the compound to dry slowly and set effectively.
Enlarge cracks bigger than 1/4-inch wide with a cold chisel and hammer. Place the chisel on the side of the crack and hit its top with a hammer to make the crack at least 1 inch deep and 1 inch thick. Use a hose to wash away any rubble and dust. This process ensures the crack will be filled with enough compound to support the weight of objects that move over the driveway.
Apply concrete adhesive to the newly cut areas of the driveway with a paintbrush. The adhesive will help the repair compound seal the crack.
Pour premixed gravel concrete into a large bucket. Pour enough water over the mix for it to become damp and easily movable. Use a trowel to push the mixture down inside of the crack. When it starts to set, smooth it down with a trowel.
Cover the area with plastic sheeting or boards once it is dry, which usually takes about two hours. Keep the area covered for about five days. Lift the covering each day and apply enough water to moisten the concrete. This process allows the concrete to cure. Avoid stepping or driving on the patch for three to five days.
Clean the driveway and clear it totally of any dirt or debris once the patches are dry. Pour sealer onto the driveway to finish the sealing process. Sealing your entire driveway will help to secure the patches and prevent new cracks from occurring. Start by pouring about a quarter of the container of sealer onto one end of the driveway. Use a paint roller to move the sealant from side to side and work your way down to the other end of the driveway. Use a paintbrush to apply sealant to tight corners and edges. Pour more sealant as needed. Take care to apply the sealant as evenly as possible -- you want to leave a milky-white finish on the driveway, but not any puddles. Allow the sealant to dry for at least four hours before walking on it, although 24 hours is better.
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