Foundation crack on the outside.

[Rust_Belt_Pete]

I have this old crack in the foundation.
It was fixed from the inside but we have freeze and thaw here so I want to fix it from the outside too.
Any expanding foams or chemicals to fill the crack?

 

[BMWTurboDzl]

I have this old crack in the foundation.
It was fixed from the inside but we have freeze and thaw here so I want to fix it from the outside too.
Any expanding foams or chemicals to fill the crack?

View attachment 300849

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Iirc Home Depot sells a filler.

 

[CarbonToast]

To seal it up, I would use Loctite PL Concrete.

You will need to clean all the paint off and grind off any loose stuff where you want the urethane to bond.

https://www.lowes.com/pd/LOCTITE-PL...ILCx5QKvGKeSiH1gfMZQJN3qlKYTfkc8aAnMuEALw_wcB

 

[zzyzzx]

I was also going to recommend a polyurethane based product.

 

[Lubener]

You may have to open it up a little but a hydraulic cement will expand and fill the void.

 

[Rust_Belt_Pete]

I may have to seal it temporarily for the winter before digging into this properly to fix it next year. Meanwhile gotta seal that joint to keep the water out.

 

[Lubener]

I may have to seal it temporarily for the winter before digging into this properly to fix it next year. Meanwhile gotta seal that joint to keep the water out.

View attachment 300887

View attachment 300888

A urethane sealant should do the trick.

 

[JohnnyG]

You should first determine what is causing it to crack repeatedly. If it's a settling situation, nothing that you stick on top will ever stop it from reoccurring.
Time to call RamJack.

 

[Rust_Belt_Pete]

It settled a long time ago and didn't leak it just that the outside repair looks like its crumbling. I just want to make sure I don't have water intrusion there.

 

[slomo]

Bet if you took a hammer and tapped along the entire area, bunch more will fall off. Looks like no primer was used. Poor prep job slash craftsmanship. That mud is not sticking to the footing.

 

[50yr Street Mech]

If you're going to use a cement based product, use " concrete milk" as a primer. That's the lay man's name of it. It's a concrete adhesive that you brush on the concrete before applying concrete. Looks like milk. I think Silka makes it. Home Depot or Lowe's.

 

[slomo]

If you're going to use a cement based product, use " concrete milk" as a primer. That's the lay man's name of it. It's a concrete adhesive that you brush on the concrete before applying concrete. Looks like milk. I think Silka makes it. Home Depot or Lowe's.

All that is would be a little portland cement and water. No need to buy anything at the store. Unless you are out of portland.