How To Fix Concrete Wall Hole

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.

How to fix concrete wall hole.

Always wear gloves when handling cement. Just before filling each hole with the expanding concrete repair product use an old spray bottle and spritz the hole with a spray of clean water. Use a hammer and chisel to remove loose concrete from the hole. Don t skimp on cost.

I used a soaked sponge to wet the bricks and mortar making it easier for the cement to get a good bond. If possible make the bottom part of the hole slightly wider than the top part. Instead clean it out and choose an. The injection process fills the crack from top to bottom from inside to outside.

Wet down the holes with water for best patch adhesion. Use an epoxy injection system for basement wall crack repair we repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall. The only way to repair foundation wall cracks successfully is by the injection process. To apply the cement i grabbed a good handful and worked it into the right shape breaking up any clumps.

Clean the hole and surrounding area with a wire brush. Dampen the hole and surrounding area with water using a spray bottle. If you have a wet dry vacuum this is a great place to use it. You want the surface of the inside of the hole to.

Tip if you are having trouble getting the wall patch to stick try wetting it slightly with a wet sponge or a using a spray bottle filled with water. If the hole is already greater than 1 in 2 5 cm deep don t try to make it deeper. It provides much better adhesion and curing of the patch. This is important as most concrete products shrink as they cure and you want to prevent that as much as possible.

Pop outs are small conical shape chunks of concrete that have popped out and left a hole behind. 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. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60. Vacuum any remaining dust or debris out of the hole.

Smooth the edges of the patch around the hole. Clean the hole with a stiff fiber or wire brush.