Repair Pitted Concrete Wall

After chiseling clean the area as described for smaller pits.

Repair pitted concrete wall.

The truth is repairing your garage floor isn t very difficult and you only need some. This will ensure a long lasting repair as concrete shrinks and expands as it cures and over time. The key to a lasting repair is to make a saw cut around the perimeter of the damaged area cutting back to solid concrete. Apply small amounts of water over a short period until it has absorbed water deep into the wall.

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. Mix and apply the resurfacer. The cut should be at least 3 8 in. The only way to repair foundation wall cracks successfully is by the injection process.

The concrete should be damp when you apply the resurfacer but not wet to the touch. 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. Follow the resurfacer manufacturer s. Pour the mix into a puddle on the slab and immediately spread it photo 7.

It s because the idea of repairing it on your own seems intimidating. Mix a batch of concrete in a large bucket. When the spalling damage is shallower than 1 3 of the concrete s thickness the concrete usually can receive a surface repair. Use a drill with a paddle bit to mix the concrete.

The concrete should be mixed thickly enough to not sag when placed onto the vertical surface of the wall. You want the bottom of the holes to be slightly wider than the top. Spalling is the mason s term for concrete that s pitted or chipped as in photo 1. The reason people hold off their fancy garage floor projects isn t because of some concrete spalling or pitting.

Let s talk about how to repair pitted concrete garage floor. The injection process fills the crack from top to bottom from inside to outside. Then using your drill mounted paddle attachment. 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 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. Most repairs that fail do so because the patch is too thin at the edges and breaks off. Prepare larger pits and cracks by using a chisel to chip away at the bottom of the pits.