Scrape the rusts off the steel bars with a wire brush reseal the hole with new concrete.
How to fix crumbling concrete walls.
How to repair your crumbling concrete walls 1.
Apply a layer of.
Apply a thin coat of concrete bonding agent over each of the crumbling areas using a medium to large paintbrush.
To begin you want to remove paint and any loose concrete from the surface.
By doing this you ll not only end up taking care of the visible cracks but.
Rub the bristles of a stiff scrub brush over the edges of the crumbling area to remove loose concrete and dirt.
Next you want to mix up a batch of mortar and to do so you can purchase premixed in a bag or mix your own by using 1 part cement to 3 parts sand.
Get rid of any dust and debris with a wire brush.
Completely cover your limbs and choose.
Do not get carried away and get aggressive you just want to remove as much as you can so the new mortar will stick to the old.
Scrub the crumbling areas of the wall gently with a stiff bristled brush to knock away small loose pieces of.
Wear appropriate clothing that will protect your skin from flying cement.
You want to make sure your new coat of concrete has a strong steady.
How to fix crumbling concrete step 1.