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!