General > General info Somewhat hot tub related

Concrete pad repair

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GoWyoGo:
I moved into a new house, and need to get a pad setup before i buy my new tub(left old one at the old house):'(. There is a pad allready in place, but it has a crack running thru it and part of it sank/tilted a few inches. The house is 14 years old, so i am assuming all the settling is done. I am wondering if it is possible to add an inch or two of fresh concrete on top of the pad to re-level it, or if i need to remove it and repour? Any suggestions are greatly appreciated.

Brewman:
I'd be more inclinde to remove and repour the slab.
Putting a couple inches on top may work, but what if it goes a year, and the top cracks?  

hottub.pool_boy:
If it was mine, I'd give it a few whacks with a sledge hammer and breake it up. A good 10-12lb sledge will do. You can use a hammer drill with a chipping bit as well. Sledge works quicker.

Brewman:
If you wanna have some real fun, go rent a jackhammer!

Hammster:

--- Quote ---I moved into a new house, and need to get a pad setup before i buy my new tub(left old one at the old house):'(. There is a pad allready in place, but it has a crack running thru it and part of it sank/tilted a few inches. The house is 14 years old, so i am assuming all the settling is done. I am wondering if it is possible to add an inch or two of fresh concrete on top of the pad to re-level it, or if i need to remove it and repour? Any suggestions are greatly appreciated.
--- End quote ---

I'd be curious to know what caused the sinking/tilting if it were me. A few inches is a lot of movement in 14 years! Could be tree roots, water, heave, who knows what. It's possible that the slab isn't reinforced with rebar which I understand is now required of all concrete slabs even if for a patio. So it might be worthwhile to tear this one up, make sure the underlayment is in good shape and pour a new one.

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