Dampen the hole and surrounding area with water using a spray bottle.
How to patch a large hole in concrete wall.
Clean the hole and.
Remove loose material from the hole in the wall by probing it with the tip of a screwdriver or blade of a putty knife.
Mix a small.
Also try to flatten out the bottom of the hole to create a stable level surface for the new patching material.
It is kind of a not very good thing.
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.
Knock away the cracked and crumbling concrete around the hole.
A huge hole in the cement wall that separates our garage from our basement.
It is not a good idea for a large patch since it can lead to cracking of the other material.
Or rather one very large thing.
Hydraulic cement expands slightly as it sets.
How to fix a large hole in a cement block.
Scrape out the hole with a mason s chisel while dislodging loose or crumbling block.
Here it is with brad for scale.
Use a hammer and chisel to remove loose concrete from the hole.
If the wall is not holding anything i would fill it in with some bricks then use mortar to finish.
Clean out as much debris as possible and use a shop.
How to fill a hole in the exterior concrete wall of a home before painting.