You won t be able to get a nice flat finish and it won t adhere very well.
Patching holes in concrete block walls.
Fill the hole working upward from the bottom.
Patch smaller cracks or holes with concrete.
Combine a mortar mix with water in accordance with the mortar instructions.
How to fill holes in a cinder block wall.
Knock away the cracked and crumbling concrete around the hole.
Put a tube of combined mortar and concrete caulk into the caulking gun.
Patching cracks with concrete 1.
After hearing that i seriously considered just gluing a piece of plywood over it and calling it a day.
Fill the cracks and holes with concrete caulk.
To do this you can t just spread new concrete onto the old blocks like cake frosting.
Mist any cracks or holes with a handheld bottle.
Chisel out any loose pieces of cinder block around the edges of the hole and brush away any loose debris with a.
Spray the hole out with water using a spray nozzle attached to a garden hose.
4 direct the mason s chisel.
Using a wire brush brush clean the cracks and the holes.
Open it by cutting off the tip and squeezing until the contents come out in a bead.
Chisel away any loose material around the edge of the hole so that the patch will adhere to a solid surface.
Use mortar and concrete caulk to fill holes.
Brush out any remaining dirt or debris.
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.
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.
Water may be used to make sure that all loose concrete.
I considered a lot of options.
Le the hole or the crack dry for quite some time.
Also try to flatten out the bottom of the hole to create a stable level surface for the new patching material.
Concrete is usually enough to bind together minor wall damage.
If the hole or crack.
The easiest fastest cheapest solution to repairing the cinder block was using poured concrete and then painting the entire wall to mask the patch.
The following steps will serve as guide to fixing these problems.
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.
Purchase a bag of pre mixed concrete and empty the bag into a bucket or concrete tray.
Set the spray nozzle to its.