If your aim is to make the wall look better a smooth surface is also easier to paint.
How to fix a hole in concrete block wall.
You can see how much of a void there was between the form and the blocks.
Hose the wall down or scrub it with a washcloth then use a metal file to smooth out any rough edges.
Holes in a cinder block wall not only are unsightly but also over time will grow larger.
As moisture fills the holes and the temperature changes the edges will grow brittle and crumble.
This will need to be completely filled with concrete to give you a nice square finished end.
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.
For this project we used ready to use concrete mix.
Patching such holes is a necessary part of keeping your concrete foundation wall in good repair.
Readily available materials can fix some cracking in a block wall without having to tear it down and add new concrete follow the instructions below and take care of this damage before it can cause problems.
Cinder blocks can still be damaged by time and severe impact however.
First clean any parts of the wall that you plan to repair so the cement or mortar adheres securely.
We attached the form to the damaged end of the wall using a bunch of clamps.
Patching a hole in a cinder block wall requires some time along with the appropriate materials to make the repair.
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Cinder block is a useful construction material since it is normally lighter than solid concrete and yet still durable enough to last under normal stress conditions.
A huge hole in the cement wall that separates our garage from our basement.