Sinking slab suggestions

[Blown71X]

Sinking slab suggestions(UPDATE) lots of pics

Well I start my first post with question I really wish I didn`t have to ask , part of my slab is settling
The floor was done in 2 parts due to cold weather approaching and finished in the spring (32x60 total), The rear section which was done first and is also sitting on about 18 inches of compacted fill for most of it`s length, It settled about 1/4 inch after the first year but never moved any after until recently (3 years later) and it is down about 3/4 of an inch total,(I know this due to the base moulding now not touching the floor ) Thank god the cuts have done their job an no cracks have shown up in the middle, but this i`m sure isn`t going to continue to be the case.
Anybody have any suggestions short of jackhammering it out which just isn`t an option both feasible and cost wise, or just hope for the best
I at some point have heard of drilling and pumping material under to raise it but not sure if that was just someones hair brained idea or legit and even if possible, if it would be worth it


Comments ?

Thanks
Rick

 

[Vicegrip]

It is real. It is often called mud jacking and works when done under correct conditions.

 

[bmwpower]

Don't worry, you're not crazy.

If all else fails, "Ask the Builder":

http://www.askthebuilder.com/086_Concrete_Slabjacking.shtml

 

[RPH]

We had a freeway here in Detroit start sinking after 2-3 years of use. Had to shut the whole thing down. they determined the storm drain 75 feet below the road bed was washing away the soil. The drilled and pumped epoxy glue to make one huge clump of glueball. Did this for about 6 miles of freeway, has'nt moved since.

 

[Poltax]

I have had the "mud jacking" done on my sidewalks and part of my driveway. It works great. All they do is drill holes 1" holes in the right places, then pump cement mud into the holes. The mud then goes out underneath the slab. You can actually see the slab raise up. Its pretty cool unless they pump to much..........ooops where did that crack come from!!!!

 

[MAINIAC]

This is the same system (mud jacking) that they used a few years ago to stablize the "leaning tower of pizza". I quickily looked for a link but didn't get the one that I was hoping for. you should be able to find it with a Google search.

 

[Blown71X]

Thanks guys, Did some checking for locals and found one in Indy, Just got off the phone and they said about $900`ish to do it, At this point thats fine with me over waiting for it to drop more and crack in the middle.
Scheduled for the end of August so i`ll see how it goes.


Thanks again
Rick

 

[Kevin54]

Scheduled for the end of August so i`ll see how it goes.

Make sure to take "before" and "after" pics and maybe some "during" pics. I think on most garages, the majority of people will have settling problems and although I have heard of this, I have never seen anyone around here that has had it done. There are ones that do it though. I know that my slab has sank to the point that water really pools into the corners. Summer doesn't bother me but I don't care too much for it in the winter.

Kevin

 

[kbs2244]

I have had sidewalks and porch steps mud jacked with success.
I just hope you don't have any in the floor heating tubes.
I guess this is a reason for those of us thinking of in the floor radient heat to be real sure about our pre-pour ground prep.
I am sure there would be a damage disclaimer involved if you had to mud jack a floor full of tubes.

 

[mpraddict]

Good to see another moparts guy over here Rick. Not much to add to what has already been said, just wanted to say hi.

Eric
(moparts - Butterscotch71)

 

[JDMopar]

Moparts? Looks like we migrate around like geese!

 

[Blown71X]

Re: Sinking slab suggestions (UPDATE) lots of pics

Well it`s been an ordeal to say the least, finally got someone to do the mudjacking (it`s a long story but some some people have business ethics that piss me off)

I must say that i`m impressed, watched it and was simply amazed, I did wind up with a couple of small cracks due to some thin spots on the corners, but nothing worth worrying about.

Before:

After:

Now I can finally get everything put back to a somewhat semi controlled mess as I had everything was stuffed up in the front and it was driving me nuts

NOW I feel better

Not spotless but good enough

Thanks for the suggestions from the members here

Rick

 

[5wndwcpe]

Moparts? Looks like we migrate around like geese!

I hear that.

 

[bmwpower]

So, Rick, how much did it cost you? And where did they "insert the mud"?

 

[Blown71X]

Cost was $650 which was actually 300 cheaper than the first guy that was supposed to be here to do it a week eairler...I won`t get into that as i`m still not happy about it.
They drill 1" holes about every 4 feet or so along the area to be lifted, It is a mixture of crushed limestone and water, About the consistancy of pancake batter. The guy told me that the reason for the 4 foot deal is that is about the distance the mixture will flow before it looses it`s ability to lift evenly..Don`t hold me to that, i`m just relaying what I was told...I will say this, It amazes me after actually seeing it that concrete can move and flex that much and not just crumble.

Rick

 

[Franz©]

What, no pics of the pumping equipment, tube system and fittings that go into the floor?

Around here they would go broke pumping anything to raise garage floors. Generally the builders use the garage for a landfill of drywall scraps and anything else they need to hide, throw some dirt on top, and pour before the dirt settles. By the time it does the builder has evaporated.

 

[Kevin54]

I am impressed!!! That is something I will have to keep in mind for mine. BTW...the reason that your floor sank to begin with was too many Mopars in there. I am willing to tak the yellow Cuda off of your hands and store it in my garage until you are sure your floor won't sink again or until I get my floor done. I wouldn't do this for just anyone but for a fellow board member....LOL!!!

Kevin