How To Fix Big Hole In Concrete Wall

Using a cold chisel and a 3 pound sledgehammer undercut the hole by making the pop out wider at the bottom than at the top.

How to fix big hole in concrete wall.

Lay the chisel on the edge of the hole and point it downward at a 45 degree angle into the. Le the hole or the crack dry for quite some time. Vacuum any remaining dust or debris out of the hole. Wet down the holes with water for best patch adhesion.

Fill the cracks and holes with concrete caulk. If you have a wet dry vacuum this is a great place to use it. 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. This is important as most concrete products shrink as they cure and you want to prevent that as much as possible.

Dampen the hole and surrounding area with water using a spray bottle. Clean the hole with a stiff fiber or wire brush. For that size vertical hole you may need to brace a board over the hole to hold in the patch until it dries. Don goggles and a respiratory mask.

Clean the hole and surrounding area with a wire brush. Using a wire brush brush clean the cracks and the holes. Water may be used to make sure that all loose concrete particles are removed. After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day.

It provides much better adhesion and curing of the patch. Address any pop outs pop outs are small conical shape chunks of concrete that have popped out and left a hole behind. How to fix a large hole in a cement block 1. Scrape out the hole with a mason s chisel while dislodging loose or crumbling block.

Mix a small portion. Clean out as much debris as. Don t skimp on cost. If this is a retaining wall you need to fix the problem ont he other side of the wall first.