Modern epoxies are available that also make great repairs.
Using moter mix for crumbling concret walls.
First clean any parts of the wall that you plan to repair so the cement or mortar adheres securely.
Type o can be used as an alternative to type n for some interior applications but its exterior use is limited due to its low structural capacity.
The wall needs to be moist so that the old concrete won t leach moisture out of the mortar that you apply and cause the repair to fail.
Now you should apply water to the wall where you will be applying the mortar.
Hose the wall down or scrub it with a washcloth then use a metal file to smooth out any rough edges.
The ratio should be three parts stone two parts sand and 1 5 parts portland cement for a strong mix.
Just before brushing on the cement paint to the old concrete this master craftsman said to get the old concrete damp.
Always use the cement paint to bond your new concrete to your old.
You want to make sure your new coat of concrete has a strong steady hold to the old surface.
Type o mortar mix.
It is used primarily interior above grade non load bearing walls.
Then mix your concrete with water mist the cracks with water.
A stone wall can give your garden timeless appeal.
Stone walls also look better with age.
It is a professional grade blend of portland cement sand and gravel that is formulated for superior durability.
To repair small cracks or holes in cinder block walls you can use concrete.
You want it damp.
To repair deeper concrete defects or to replace chunks of missing concrete just add small stones to your mix.
Use sakrete 5000 plus high strength concrete mix for repair and building projects where concrete thickness is 2 inches or more and demands excellent strength.
Using either a screwdriver or hammer or a combination of both chip off any loose concrete paint or old filler.
Continue chipping of the loose concrete until the steel bars using in reinforcing the concrete walls are exposed.
Get rid of any dust and debris with a wire brush.
They can be stacked without mortar but this requires stacking them just so.
Whether you re looking to build a wall for a raised garden or a small retaining wall a stacked stone wall can offer elegance without a lot of expense.
You can use a sponge a brush or an old spray bottle.
Once the steel bars are exposed brush away every concrete attached to them using a wire brush.
Apply small amounts of water over a short period until it has absorbed water deep into the wall.