Home Page link

Eroding Dirt Foundation of Concrete Slab

Home| Search | About
Login Password
Register Now! Lost Password?

Building Construction - Building Construction Industry Discussions. 

Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Eroding Dirt Foundation of Concrete Slab Jack King 06-07-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Jack King on June 7, 2008, 11:01 pm
We had a slab built a few years ago and the builders simply built-up the
earth to support a even slab, there are no concrete foundations...only
dirt. The dirt is now eroding from around the perimeter of the slab
leaving its corners hanging in the air. Anything I can do to repair
this? Advice is greatly appreciated.

Jack.

Posted by Steve on June 8, 2008, 12:44 am

> We had a slab built a few years ago and the builders simply built-up
> the earth to support a even slab, there are no concrete
> foundations...only dirt. The dirt is now eroding from around the
> perimeter of the slab leaving its corners hanging in the air.
> Anything I can do to repair this? Advice is greatly appreciated.

I'd talk to an engineer before doing anything. You might need to just
replace the dirt, and you might need to do something drastic.

Speculation: Replace the dirt, then build a retaining system with concrete
block.

Get thee to a foundation contractor.
--
Steve B.
New Life Home Improvement

Posted by hawgeye on June 8, 2008, 8:08 am
"Jack King" wrote...
> We had a slab built a few years ago and the builders simply built-up the
> earth to support a even slab, there are no concrete foundations...only
> dirt. The dirt is now eroding from around the perimeter of the slab
> leaving its corners hanging in the air. Anything I can do to repair this?
> Advice is greatly appreciated.
>
> Jack.

You didn't mention what the slab is used for. If there is no significant
load applied where the erosion is taking place, you could get away with
replacing the dirt. You need to install some sort of drainage system around
the perimeter, assuming that water is causing the erosion.

--
hawgeye ©



Posted by jloomis on June 8, 2008, 9:36 am
First, Slap the contractor.......What a nice guy.....
I even put a small footing in a 3x4 stair pad just for that reason.....

The only thing you can do is undermine the exterior slab along the perimeter
and fill the area with concrete either by building a form and or external
footing with block. You may have to make the form or block wall 3" away
from the slab inorder to "pump" the concrete into the area.....
You should get the "Builder" to do this for you. It may help teach him a
lesson. I would also say an easier way would be to build a retaining wall
with PT fir. and backfill to the bottom of the slab and compact the
earth.....
Depends on what you want to see. Concrete is more permanent.
jloomis
> We had a slab built a few years ago and the builders simply built-up the
> earth to support a even slab, there are no concrete foundations...only
> dirt. The dirt is now eroding from around the perimeter of the slab
> leaving its corners hanging in the air. Anything I can do to repair this?
> Advice is greatly appreciated.
>
> Jack.



Similar ThreadsPosted
Volume of dirt needed? February 7, 2007, 2:17 pm
Forms stripped from concrete foundation September 5, 2006, 10:31 pm
wood versus concrete foundation/basement January 7, 2007, 7:34 pm
Repair of Crack in Concrete Foundation Wall October 14, 2007, 3:39 pm
Attaching deck ledger to concrete foundation wall September 24, 2007, 2:54 pm
concrete slab June 24, 2008, 8:56 am
Concrete slab question June 29, 2007, 12:32 am
Concrete slab for parking a car November 9, 2006, 7:05 am
Concrete Slab costs June 18, 2007, 9:58 pm
Concrete slab advice August 18, 2007, 11:32 am

Contact Us | Privacy Policy

XML SitemapXML Sitemap