How to repair a concrete wall
by
Dee
+9
Has anyone ever repaired a concrete wall? We bought mesh and mortar but are hoping to get a few ideas on exactly how to connect the mesh to the wall and then mortar it upright as it's a wall. Any ideas much appreciated
9 answers
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What condition is the wall? How bad is it? Photos would help. Different ways to repair depending on condition and shape.
William
on May 03, 2016
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One section is actually a corner that comes into the room. It's like the wall goes along straight and then there's a bay window type of bump out in the foundation which forms the interior corner. Another is just a flat wall section.
Dee
on May 03, 2016
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Depends how deep is the repair/damaged area and what type of concrete, plain or with concrete bricks with holes. Basically concrete is mortar+some sand or not +stones. It's the stones that make the concrete strong. So it depends also whether what you want to repair is just "surface"-damage or deeper holes, meaning someday someone may want to drill holes and hang something and in that case the repair should be able to withstand that ...or it will potentially be dangerous. If your repair is just on surface, there's special mortar xith plaser that is better t use than mortar. If the repair is deep and the area is large I'd say consult a professional, unless you want to mrk the wall externally in order to recall not to drill and hang anything tht might fall down and hurt your pets/yourselves/your guests and whoever one day may buy the house.
Carole
on May 04, 2016
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Thanks for all the info!
Dee
on May 04, 2016
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Not having any photos to see the amount of damage, I can only give you some tips. You don't need to use mesh on the wall. What you need is mortar that has a bonding agent in it to adhere to the existing wall. Quikcrete makes a lot of cement products. Some are premixed and some are not. You need to see what is available for your situation. Ask one of the pro's at the big box store. If your going to use just mortar, you still need to coat the wall with a concrete bonding agent to adhere the new mortar to the old mortar. Clean the wall from all loose material. Apply the bonding agent to the wall, let dry, then just apply the new mortar with a large trowel (like applying a skim coat of plaster) over the existing wall smoothing the mortar as you go along.
William
on May 04, 2016
- See 1 previous
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That was great William, thanks very much
Dee
on May 04, 2016
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Great ideas from all
Dee
on May 04, 2016
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It's called "repointing" when you replace missing mortar. If you google you will find instructions.
Laura Williams-May
on May 05, 2016
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Thanks Laura!
Dee
on May 05, 2016
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