You won t be able to get a nice flat finish and it won t adhere very well.
How to repair large hole in concrete block wall.
Le the hole or the crack dry for quite some time.
A huge hole in the cement wall that separates our garage from our basement.
Scrape out the hole with a mason s chisel while dislodging loose or crumbling block.
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.
If the hole or crack is.
Fill the cracks and holes with concrete caulk.
Clean out as much debris as possible and use a shop.
Don goggles and a respiratory mask.
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.
Apply concrete to any gaps in the blocks or mortar using a shovel.
How to patch a hole in a cinder block wall.
Water may be used to make sure that all loose concrete particles are removed.
Holes this large make that type of fix impractical.
To do this you can t just spread new concrete onto the old blocks like cake frosting.
Mortar is commonly used to patch.
How to fix a large hole in a cement block.
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.
Or rather one very large thing.
Chisel out any loose pieces of cinder block around the edges of the hole and brush away any loose debris with a nylon brush.
Knock away the cracked and crumbling concrete around the hole.
Repair a hole in a block foundation wall.
Also try to flatten out the bottom of the hole to create a stable level surface for the new patching material.
The easiest fastest cheapest solution to repairing the cinder block was using poured concrete and then painting the entire wall to mask the patch.
Fill the holes and cracks as deeply as you can then scrape the top over with a trowel so the concrete can patch the wall together evenly.
Use a hammer and chisel to remove loose concrete from the hole.
Using a wire brush brush clean the cracks and the holes.