Lay a scrap board over the blocks to provide a surface that will catch any cement patch that falls so it can be scraped up with a trowel and reused rather than ruining the surface below the wall.
Repair top of concrete block retaining wall.
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This will need to be completely filled with concrete to give you a nice square finished end.
You can see how much of a void there was between the form and the blocks.
When this occurs the homeowner has two choices.
Additional time depending on extent of damagewearing safety goggles begin by cleaning all crumbling brick and mortar from the crack with a cold chisel and sledgehammer.
Place two large cement blocks tightly against the wall underneath the area to be patched.
Follow the simple steps.
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A concrete block retaining wall is the perfect solution to control erosion to eliminate a hard to mow slope to add a planting bed or to level an ideal patio area.
The blocks are after all made out of concrete but when they crack it is usually the mortar.
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.
This means that you will need to repair cracks and possibly replace entire cinder blocks.
Either demolish the wall.
A concrete block wall whether outdoors or otherwise can suffer damage due to weather flooding or accident.
To repair small cracks or holes in cinder block walls you can use concrete.
Over time in the elements the blocks that make up the cinder block retaining wall can deteriorate due to harsh weather conditions.
Whether a retaining wall is built of stone block concrete or wood it can begin to lean.
Retaining wall repair options.
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Where the crack runs through a brick or a concrete block use a brick chisel angled into the crack to widen and undercut the break.
About 3 to 4 hours for cleaning and initial filling.
For this project we used ready to use concrete mix.
This article shows you how to install one in a weekend.
We attached the form to the damaged end of the wall using a bunch of clamps.