Use a wire brush check on amazon to brush both ends of the walls and then try a vacuum pump to suck out all debris in between the crack.
How to repair crumbling concrete block retaining wall.
First clean any parts of the wall that you plan to repair so the cement or mortar adheres securely.
Either demolish the wall.
When this occurs the homeowner has two choices.
The next step is to install the short pieces of steel in the deep holes to help bond the repair concrete to the old.
Whether a retaining wall is built of stone block concrete or wood it can begin to lean.
How to inexpensively repair a crumbling retaining wall at your home.
Place two large cement blocks tightly against the wall underneath the area to be patched.
To repair small cracks or holes in cinder block walls you can use concrete.
How to repair crumbling cement walls by jourdan townsend.
Retaining wall repair options.