Clean and prepare the concrete blocks.
Repairing hole in concrete block wall.
A huge hole in the cement wall that separates our garage from our basement.
How to repair a concrete block wall.
Patching cracks with concrete 1.
You won t be able to get a nice flat finish and it won t adhere very well.
Follow the instructions below and take care of this damage before it can cause problems.
Using a wire brush brush clean the cracks and the holes.
Or rather one very large thing.
If you can insert a small bottlebrush to get out any dust or silt that s on the concrete this will really help ensure patching success.
Purchase a bag of pre mixed concrete and empty the bag into a bucket or concrete tray.
Tap the chisel with a hammer and chip downward to the back wall of the block creating a larger opening in the back of the block than the hole in the front of the block.
Patch smaller cracks or holes with concrete.
To permanently patch the crack we used an epoxy injection system from polygem called the liquid concrete repair kit 60.
4 direct the mason s chisel.
Mortar is commonly used to patch.
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.
Holes this large make that type of fix impractical.
Mix and apply concrete.
To do this you can t just spread new concrete onto the old blocks like cake frosting.
Then use a metal file to smooth off any.
Water may be used to make sure that all loose concrete.
How to patch a hole in a cinder block wall step 1.
Combine a mortar mix with water in accordance with the mortar instructions.
If the hole or crack.
Use an epoxy injection system for basement wall crack repair.
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 cracks and holes with concrete caulk.
Concrete is usually enough to bind together minor wall damage.
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.
We repaired a foundation wall which had an 8 ft long crack that leaked water into the basement during periods of heavy rainfall.
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.
Le the hole or the crack dry for quite some time.
Mist any cracks or holes with a handheld bottle.
The following steps will serve as guide to fixing these problems.