Repairing Large Holes In Concrete Walls

Or rather one very large thing.

Repairing large holes in concrete walls.

Deep patch is solid concrete repair product for patching large holes in concrete surfaces. Patching such holes is a necessary part of keeping your concrete foundation wall in good repair. If your aim is to make the wall look better a smooth surface is also easier to paint. A huge hole in the cement wall that separates our garage from our basement.

The only way to repair foundation wall cracks successfully is by the injection process. You can use mortar mix to repair masonry but it is about 4 5x as expensive and the finish isn t that much nicer. If the holes were smaller i would use hydraulic cement which actually slightly expands as it cures with about a 3 4 minute working time. Concrete is is a lot coarser and includes large rocks and gravel.

The injection process fills the crack from top to bottom from inside to outside. To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60. Surecrete s solid cement filler is a single component just add water cement based chemical patching compound system providing a patch that goes from 1 8 0 32 cm and up. If this is just a wall above ground on both sides you can mix up some concrete patch and fill the hole back in.

If you do have hollow cinder block walls then yes you will need to use a filler like spray foam for areas the holes go all the way into the center. Tap the chisel with a hammer and chip downward to the back wall of the block creating a larger. For that size vertical hole you may need to brace a board over the hole to hold in the patch until it dries. Holes this large make that type of fix impractical.

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 a big hole in a cement wall when a posted a little while ago about sealing and patching holes in my garage i conveniently left one small thing out of the narrative.