How to fix broken concrete corner on foundation

[Mick56]

On the house I recently purchased, it has poured basement walls, and brick exterior walls. I have an outside corner that is broken and has a loose piece. It doesn't hurt anything other than looks, but I would like to fix it. Should I just glue the broken pieces back in? What would I use? Or take the broken pieces out, mix some Quikcrete, and patch the corner with that?

 

[nadogail]

Are you familiar with A product called Fixall?

 

[rustyjames]

On that repair I'd be tempted to flush it out real good with the garden hose, let dry and fill it in with some PL Premium. Leave it a little below the finish surface and finish with mortar mix.

 

[wssix99]

Before doing anything to repair the problem, you need to fix the cause. (Otherwise, any repair won't last one season.)

It looks like you have some pavements that run right up to the house and are NOT isolated by a proper expansion joint. If so, then those pavements are expanding and heaving against the house and things are giving way at the weakest point. (The corner.)

If you don't have an expansion joint, the first thing you'll need to do is cut or chip a relief between the pavement and house and then fill it with some expansion material and/or caulk.

From there, you could epoxy the pieces back on the slab and then patch the cracks. If you can drill through the pieces and add some rods or bolts that tie the pieces into the main slab, that should make the whole thing more durable.

 

[Mick56]

Here is a pic from a little farther away. The slab next to the wall is actually about 2" away, there is just some powdered rock in the joint that matches the cement color. The house is 55 years old, I just figured somewhere the corner was maybe hit with a mower, and broke the corner off. The basement wall is about 12" thick, so it doesn't hurt anything. Just want to make it look better.

 

[rustyjames]

Looking at that pic I would just try cleaning it and troweling on a little mortar mix.

 

[wssix99]

there is just some powdered rock in the joint

This is the problem. That stuff needs to go and a material flexible material needs to go back in its place. (Like expansion joint or a proper foam material. Any rock or dirt will press against the house as the pavement moves and expands in heat or heaves in cold.

The long part of the wall is stout and can "push back" when this happens. The corner is the weaker spot and will continue to give.

If the broken spot is thin enough to cover up with a trowel-on product and if you want to go that way; I'd screw some mesh on to the broken part of the foundation and then trowel over that. so the repaired section will hold on. Sand mix would be the proper inexpensive material. From there, you should be able to find higher performance patching products by companies like Ardex, Sika, etc.

 

[rburke65]

In my opinion, it doesn’t look like a worrisome problem....looks as if just a small corner is chipped org. As said, flush out the corner....you could possibly use a mastic and reattach the corner piece.

 

[dogdog]

I have used this thing with good success... it's for portland type I/II or N cement/mortar only not the pre-mix stuff... to patch a lot of broken cinder block wall on my garage. you can't really glue those old broken pieces back... and you have to clean out any loose ones or going to be loose ones... that repair probably won't have any structure integrity, but will prevent further damages and better looking..

my mix are

2/3 cement 1/3 motar (type N) then the ratio of that 1:3 sometimes 1:4 with sand.

mixed some of the fortifier in and use water for the rest (just don't go all in with fortifier and not use water).

clean the corner off really good and spray some fortifier to the wall...

and have at it with your trowel.

they sell these at HD / Lowes also.

SIKA 187782 R, White, Concrete bonding adhesive, admixture for portland-cement mortar, 1-Gallon: Masonry Mortars: Amazon.com: Industrial & Scientific

SIKA 187782 R, White, Concrete bonding adhesive, admixture for portland-cement mortar, 1-Gallon: Masonry Mortars: Amazon.com: Industrial & Scientific

www.amazon.com