Repair Pitted Concrete Wall

Mix and apply the resurfacer.

Repair pitted concrete wall.

After chiseling clean the area as described for smaller pits. When the spalling damage is shallower than 1 3 of the concrete s thickness the concrete usually can receive a surface repair. Pour the mix into a puddle on the slab and immediately spread it photo 7. Spalling is the mason s term for concrete that s pitted or chipped as in photo 1.

You want the bottom of the holes to be slightly wider than the top. Most repairs that fail do so because the patch is too thin at the edges and breaks off. It s because the idea of repairing it on your own seems intimidating. Mix a batch of concrete in a large bucket.

Apply small amounts of water over a short period until it has absorbed water deep into the wall. The injection process fills the crack from top to bottom from inside to outside. Follow the resurfacer manufacturer s. This will ensure a long lasting repair as concrete shrinks and expands as it cures and over time.

Then using your drill mounted paddle attachment. The concrete should be mixed thickly enough to not sag when placed onto the vertical surface of the wall. Saturate the concrete with water and then use a broom to push out any puddles from the pitted areas or low spots. Use a drill with a paddle bit to mix the concrete.

The concrete should be damp when you apply the resurfacer but not wet to the touch. The wall needs to be moist so that the old concrete won t leach moisture out of the mortar that you apply and cause the repair to fail. Mix exterior grade cement based concrete pitting and spalling resurfacer with water in a wheelbarrow or large bucket depending on the size of the porch. If the damage is greater than 1 3 of the depth steel bars may need to be installed and a full depth restoration may be required.

Prepare larger pits and cracks by using a chisel to chip away at the bottom of the pits. The only way to repair foundation wall cracks successfully is by the injection process. Injecting a typical wall crack with an epoxy or urethane resin is done under pressure pushing the material from the inside all the way to the outside. The truth is repairing your garage floor isn t very difficult and you only need some.

The key to a lasting repair is to make a saw cut around the perimeter of the damaged area cutting back to solid concrete. The cut should be at least 3 8 in. Let s talk about how to repair pitted concrete garage floor.