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Posted by Art on April 19, 2007, 5:33 pm
Any supplier who supplies cement for commercial construction should have
bags on non shrink grout. We used a ton on my house for a repair. Be
cautious. If you have a perimeter drainage system you could fill it up with
grout and ruin it. There are companies (at least one) that makes a manual
pump for pumping it in. Find a real mason who gets masonry magazines and
there should be an ad for a pump. In fact look for a mason who specializes
in repairs and cosndier hiring him.
>
> Hi all - anyone know where i might find non-shrink grout or some kind
> of flowable fill material suitable for filling a few voids under my
> slab floors? Compression strength need only be 1000psi (equivalent to
> compacted soil). Anyone know what mudjackers use? Traditional
> concrete would shrink and nullify the desired effect wouldn't it?
>
> The floors haven't really failed yet, just some minor cracks. There
> are no mudjackers in California - the solution here always involves a
> jackhammer and a readymix truck. I was going to install a valve-stem
> in and end cap of a 2" pipe, drill a small hole in the slab, fill the
> pipe then hold it down over the hole, and let it flow, adding air
> pressure as needed with a compressor. The material will need to be
> similar to pancake batter viscosity.
>
> And before we get into the thread drift of why the soil is subsided,
> we're not exactly sure and there's exactly nothing we can do about
> it.. engineer says poorly compacted soil. I put in curtain drains
> above the house in case it's a water thing.
>
> Thanks a bazillion for any pointers as to what material i can use (and
> find), or how i might squeeze it under the slab floors!
>
> edfardos
>
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