Correcting 'falling' Porch Slab

72chevy4x4

You've seen it many times I'm sure, a slab poured next to the house which wasn't supported on the foundation wall or pinned on the house side of the slab-the soil settles and the slab tilts in toward the house.

I'm looking at fixing one on a 16yr old home which has settled almost 2" next to the house (covered porch over), 0" on the furthest part of the slab since it was built on a proper foundation stem wall. The slab looks as if it were poured against the plywood rim joist, which is showing signs of rot.

Has anyone installed a new 'cap' on a situation such as this?

SLSTech

How about mud jacking instead?

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cleveman

Hey Chevy,

I found a mechanic to change my tdi timing belt for $250. He is a dealership mechanic and I'm going with a 100,000 mile timing belt.

What do you mean by a "cap"? Do you mean just pouring over the existing sunk sidewalk?

What is width of the slab (sidewalk)?

Sounds like the water is draining towards the rim joist and this won't be good.

I would try to talk them into simply removing the slab. I don't believe in pouring concrete next to a foundation.

If it must remain, I guess you could remove it and replace it for $5/square foot. Any chance to keep it out 2' from the foundation and put some plantings in there? It would be a good idea to keep it away from where the excavated area was.

72chevy4x4

it's about 6' wide, it's a covered porch intregral to the house design that leads to the front door. There is a Quickcrete product for going overtop concrete-only good to I think 1-2". That and a bonding agent, thought may be an appropriate low budget fix.

great price on the belt. I was driving the TDI today-nice and peppy and the mileage aint bad either :-) Mine has 303k on the clock!

Paulie

Got a lot of porches like you describe around here. I'd mud jack it.

WarnerConstInc.

Going to have to agree again.

I thought they built them like that, huh.

nailkiller1

sand jacking
but before you do it if the concrete is up to and on the wood
get seperation slide in some flashing cut off couple inches something

72chevy4x4

I found an informative video

+ YouTube Video

I'll look into concrete guys who mud jack-thanks guys!

MZ-HANDYMAN

My Father-In-Law had a back sagging set of 5 steps. the very front is a step on top of the sidewalk and the back settled about 4" I crawled in behind it dug a trench in the middle to stand a 6 ton bottle jack on a 4x6 and jacked it up 5" and with a 2x4 shoved dirt underneath packing it as much as possible and let the jack back down and told him he was good for the next 5 to 10 years!.

He was Happy, I was Happy it was a Happy Day!

MZ-HANDYMAN

Cool!
Does anyone here do MudJacking?

I'm curious about how much pressure is going through the grout hose since they are simply holding it down with their knee.

MZ-HANDYMAN

Found the info...
0-10 GPM
12 cfm @ 90 PSI

Paulie

Wheres here?

It always strikes me that something that's common in one local is "never heard of" elsewhere. I've subbed out mud jacking many times, a quick cure to a big problem.

neolitic

Grout jacking is well and good,
but it begs the question.....
What about this?

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BobsLandscaping

Demo it, install a paver patio built to ICPI standards, add value and beauty to the property.

fez-head

I have done this with sidewalks as well. It worked out great

stp57

Now THAT is too cool!
Steve

BHR

Cool - anyone have an idea what one of the smaller units cost?

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