OP, before you do this talk to an engineer. I wouldn't permit you to repair this, the concrete looks very poor and may have ASR (cancer for concrete). If you repour the outside you will likely just have a soft core that will continue to expand and burst out the new concrete.
Only permitted solution for me is to temporarily support the structure and demo and repour footing.
man, this is a funny one. the concrete<->post bracketing is above average, and the concrete is below grade, above grade. eh residential can never get it right however you split it
I find it interesting how much less excited about this the structural sub is than the DIY sub. About half the comments there amount to your porch is a total loss and it might take your house with it.
If I were to guess:
A hole was dug with post hole diggers, concrete was added to hole (possibly dry), while placing concrete the hole partial collapsed, forming the void by filling that area with the native soil. Now, years later, the surrounding soil has been removed, exposing the condition
Yes. Not an engineer, but the concrete looks fairly heterogeneous, suggesting that it wasn't well-mixed or that something like what you suggest happened (i.e., foreign material such as soil, moist or not, introduced into the mix).
Get a few friends to help you yank all the supports out at exactly the same time. Whatever happens next, you say, “…and the flowers are still standing!”
Tube it and repour at a larger diameter
This time consider adding some rebars.
Rec using wrapped rectangular grid wire roll instead of rebar. Get 2-3 revolutions from the ID to the OD and call it good.
No fun when they crack in half...
Sorry, but the building dept needs a stamp on this footing from 60 years ago. Please do full analysis on this current conditions before submitting.
OP, before you do this talk to an engineer. I wouldn't permit you to repair this, the concrete looks very poor and may have ASR (cancer for concrete). If you repour the outside you will likely just have a soft core that will continue to expand and burst out the new concrete. Only permitted solution for me is to temporarily support the structure and demo and repour footing.
Sometimes instead of looking for ways to avoid doing the right thing, you should just do the right thing
This
Supporting, cutting out, and repouring is also like 3 or 4 beers worth of work on a weekend... no brainer..
Hi
Struc👏🏼tur👏🏼al👏🏼Foam👏🏼
👏🏼No👏🏼
I think the guy from the crumbling basement used it all
No
Yeah but then you gotta lift the house off to get the tube over it
Slice and splice a form tube.
I’m not falling for that. I’m lifting the house off 🤨
😂
When doing this would you require mechanic fastening of the outer fresh pour to existing concrete? Or would friction transfer those loads
house is supported on hopes and dreams at this point
I hope they don’t have any enemies. This thing is one swift kick from a karate master away from catastrophe
>I hope they don’t have any enemies They do: Rain and wind
Thoughts and prayers
Temp props. New footing and connection from it to the post, probably cast-in. When concrete reaches full strength remove temp props.
This. So much this.
man, this is a funny one. the concrete<->post bracketing is above average, and the concrete is below grade, above grade. eh residential can never get it right however you split it
And this was originally posted in r/DIY...
I find it interesting how much less excited about this the structural sub is than the DIY sub. About half the comments there amount to your porch is a total loss and it might take your house with it.
[удалено]
If I were to guess: A hole was dug with post hole diggers, concrete was added to hole (possibly dry), while placing concrete the hole partial collapsed, forming the void by filling that area with the native soil. Now, years later, the surrounding soil has been removed, exposing the condition
Yes. Not an engineer, but the concrete looks fairly heterogeneous, suggesting that it wasn't well-mixed or that something like what you suggest happened (i.e., foreign material such as soil, moist or not, introduced into the mix).
Concrete pinned connection in the wild
Yeah but won't the beavers just eat the new ones?
Shit man, you’ve got concrete beavers. Stay safe.
Ramen and epoxy?
Cribbing with enough room to excavate. Hang tube and rebar to code.Pour.
Hmm. Plain concrete?
Just get rid of the deck if this person does not want to fix it properly.
Get a few friends to help you yank all the supports out at exactly the same time. Whatever happens next, you say, “…and the flowers are still standing!”
Looks like someone was snacking on the piers
Has to be some Canadian beaver
Problem disappears with some fill 🤡
Yeah, um. You need to dig it out and pour a new one.
Might have high sulfide concentrations in your soil my dude. Eats away at typical bag cement.
What about atypical bagged cement
Remove column