Homeowners and builders pour slabs of concrete to provide a secure and stable place to park cars and trucks. Concrete driveways add curb appeal to a home and increase the value of the home. Cracks can happen on a concrete driveway for a variety of reasons including the slab does not have adequate expansion joints, the footing is not deep enough, the concrete was too watery or too dry when poured, the concrete slab is too thin, uneven settling, too much weight along with many other reasons. A crack on a concrete driveway ruins the look of not just the driveway, but the entire house because it looks to be in disrepair.
Cracks need to be repaired as soon as you notice them because the longer you wait the more severe iting will become.. As long as you do not have spidering cracks, you can successfully repair it and restore the look of the driveway. The most successful repairs are on cracks that run in a line. Line cracks in concrete driveways are just as the words imply, its are in either straight or curved lines. If you do not fix concrete cracks promptly, water will get inside it, under the concrete and cause more uneven settling or worse yet if the water freezes the ice will make its grow wider and deeper. It is not very difficult to repair cracks in concrete, an abled do it yourself type will have no problems successfully fixing cracks in a concrete driveway.
Preparing the Concrete Crack for Repair
Sweep the inside of it along with the surrounding area with a whick broom.
Scrape out any stuck on debris or mud out of it with a metal putty knife.
Use a shop vac if you own one to completely clean the dirt and debris out the damaged area. A leaf blower is also an effective way to blow debris ant dirt out of the line.
Put on safety goggles, gloves and a dust mask.
Rough up the edges of it with an angle grinder equipped with a masory grinding disc, a stiff wire brush or a wire brush attachment inserted into a power drill.
Vigorously rub the insides, edges and approximately 1/2 of an inch to either side of it with a wire brush or a wire brush attachment. If you are using a masonry grinder, smooth the edges of teh crack without widening or elongating it.
Repairing the Concrete
Insert a tube of an epoxy based concrete crack repair material into a a caulking gun.
Squeeze out a line of concrete crack repair epoxy directly into the concrete crack.
Forcefully push the composite material in as far as possible with a metal putty knife.
Add more epoxy composite material if necessary to build the patching material up to the concrete surface.
Apply another line of epoxy composite repair material on top of it.
Use the metal putty knife to feather the repair material out and away from it on both sides to make it even with the rest of the driveway surface.
Use a stiff bristle brush top dab at the composite material to make it rough or move the brush in circles to match the rest of the concrete driveway surface.
Allow the epoxy base composite material to completely dry before allowing cars to drive on the driveway or anyone to walk on the newly repaired surface.