OK – how am I gonna fix this prob? See attached pic. The good news is that the slab has a grid of rebar and wire in it and will never see any vehicular traffic as it is not accessible. 3500 PSI concrete and it is not cracked. We had torrential rains over the last several days. Anyone got any ideas of how to make a poor-man’s concrete pump? It looks like the effected area is around 6-8 sq ft. We will be pouring the driveway next week so will have concrete trucks on site.
Also, I guess I need to seal the joint between the foundation and the house so more water will not get in. It has fiber expansion joint in there.
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Looks like a recently poured slab? That settled a bunch and it doesn't look like just a little leakage between the slab and foundation, it looks like it was not poured on solid ground. The ground next to foundations is not undisturbed ground and will settle, water or not. If you pump it in there I would bet it will be settling more and if it only settles a sixteenth of an inch...you have lost support and will see cracks eventually.
Did you compact that before the pour? I agree that if it settled that much, it probly wasn't very solid ground, and might settly more......
hmm, I have some friends that do mud jacking!
What is the difference between 'mud jacking' and 'slab jacking'?
poor man concrete pump. we use a 2 inch trash pump. or some people call a mud pump.. Rent one from HD and just clean it real good 2+3=7
Edited 12/1/2005 7:58 pm by brownbagg
That's a good idea... So, do you water down the concrete to about a 9" slump or what? And... seems like it would take a lot of water to clean the pump?
I would water it down to about a 10 or 12 add some extra cement. and the pump itself will come apart for cleaning.. 2+3=7
Thanks much.
Brownbag, you rock, man. That is a candidate for "best idea of the year" award.So what if a person was to core drill a 2" hole in a slab, set some bolts and build a flange to mate a hose to a slab?Do you suppose you could get a bit of pressure under the slab?And what if one were to use lean fill (like flowable fill) or a sand mix?Do you think this could be used to support a slab?
after it setup it be better than what he has now.. 2+3=7