4 direct the mason s chisel.
Patching holes in concrete block walls.
Purchase a bag of pre mixed concrete and empty the bag into a bucket or concrete tray.
Mist any cracks or holes with a handheld bottle.
The following steps will serve as guide to fixing these problems.
Set the spray nozzle to its.
Spray the hole out with water using a spray nozzle attached to a garden hose.
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.
Also try to flatten out the bottom of the hole to create a stable level surface for the new patching material.
Chisel away any loose material around the edge of the hole so that the patch will adhere to a solid surface.
To do this you can t just spread new concrete onto the old blocks like cake frosting.
Knock away the cracked and crumbling concrete around the hole.
The guys at home depot had a lot of fun lamenting the fact that the hole existed to begin with and then suggested that i build a mold on one side of the wall and fill it in with a pour of concrete.
Since a thicker patch is more likely to last a long time try to make the hole up to 1 in 2 5 cm deep if it isn t already deeper than that.
Patching cracks with concrete 1.
Mortar is commonly used to patch.
Water may be used to make sure that all loose concrete.
Patch smaller cracks or holes with concrete.
If the hole or crack.
After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day.
Brush out any remaining dirt or debris.
Fill the hole working upward from the bottom.
Put a tube of combined mortar and concrete caulk into the caulking gun.
I considered a lot of options.
Chisel out any loose pieces of cinder block around the edges of the hole and brush away any loose debris with a.
Open it by cutting off the tip and squeezing until the contents come out in a bead.
If your wall has holes as well as cracks you ll need to use a slightly different material.
You won t be able to get a nice flat finish and it won t adhere very well.
How to fill holes in a cinder block wall.
Using a wire brush brush clean the cracks and the holes.
The easiest fastest cheapest solution to repairing the cinder block was using poured concrete and then painting the entire wall to mask the patch.
How to patch a hole in a cinder block wall step 1.
Le the hole or the crack dry for quite some time.
Use mortar and concrete caulk to fill holes.