How To Fix Concrete Wall Hole

Don t skimp on cost.

How to fix concrete wall hole.

The only way to repair foundation wall cracks successfully is by the injection process. This is important as most concrete products shrink as they cure and you want to prevent that as much as possible. I used a soaked sponge to wet the bricks and mortar making it easier for the cement to get a good bond. To apply the cement i grabbed a good handful and worked it into the right shape breaking up any clumps.

Vacuum any remaining dust or debris out of the hole. 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. The injection process fills the crack from top to bottom from inside to outside. If the hole is already greater than 1 in 2 5 cm deep don t try to make it deeper.

If possible make the bottom part of the hole slightly wider than the top part. 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. If you have a wet dry vacuum this is a great place to use it. 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.

It provides much better adhesion and curing of the patch. Clean the hole with a stiff fiber or wire brush. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60. Dampen the hole and surrounding area with water using a spray bottle.

Clean the hole and surrounding area with a wire brush. Apply the sticky side of the wall hole patch around the edges of the hole leaving at least a on each side of the hole. Use a hammer and chisel to remove loose concrete from the hole. Instead clean it out and choose an.

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. Wet down the holes with water for best patch adhesion. Mix a small portion. Always wear gloves when handling cement.

Pop outs are small conical shape chunks of concrete that have popped out and left a hole behind. Smooth the edges of the patch around the hole.