If your aim is to make the wall look better a smooth surface is also easier to paint.
Repair large hole in concrete wall.
Clean out as much debris as.
Don goggles and a respiratory mask.
The only way to repair foundation wall cracks successfully is by the injection process.
For that size vertical hole you may need to brace a board over the hole to hold in the patch until it dries.
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.
First scrub the crack clean of any loose concrete paint or old filler using a wire brush.
Lay the chisel on the edge of the hole and point it downward at a 45 degree angle into the.
How to fix a large hole in a cement block 1.
Performing well in filling low spots on horizontal surfaces and filling open areas e g.
It provides much better adhesion and curing of the patch.
It is pretty bad for energy efficiency to have big holes from the inside to the outside.
If you have a wet dry vacuum this is a great place to use it.
This is important as most concrete products shrink as they cure and you want to prevent that as much as possible.
Scrape out the hole with a mason s chisel while dislodging loose or crumbling block.
Here it is with brad for scale.
You want the concrete surface in each hole to be perfectly clean.
If this is just a wall above ground on both sides you can mix up some concrete patch and fill the hole back in.
Wet down the holes with water for best patch adhesion.
Patching such holes is a necessary part of keeping your concrete foundation wall in good repair.
Or rather one very large thing.
A huge hole in the cement wall that separates our garage from our basement.
10d finishing nails partway into the crack spaced 12 in.
Concrete wall crack repair in 8 steps step 1.
Don t skimp on cost.
Use a nail to align injection points.
Large concrete hole patching and thick cement repair product deep patch by surecrete deep patch is a just add water concrete patch for large concrete voids or holes.
Just before filling each hole with the expanding concrete repair product use an old spray bottle and spritz the hole with a spray.