I've got an older block house built in the 1940's. It's a decent place.
The ground is shifting and the walls are starting to crack in several
places. I'd like to tie the walls together with rebar and concrete in the
voids of the internal block. The idea is to make the block walls into a
Are any "systems" available or are any "how-to's" available on how to
accomplish this? Any info really appreciated.
If ground is shifting, you need to stabilize the ground and maybe
reinforce the foundation. Call a foundation repair company. Mud
jacking, pured-in-place pilings, altered ground water flow paths, there
are all sorts of cures they can try depending on your situation.
Putting rebar in the walls and pouring them full of concrete will make
little difference. Well-built structures crack or collapse all the time
if there is not a solid footing underneath them.
I'm not sure it is going to solve the problem. I'm not a structural
engineer, but perhaps you should talk to one. You may need to do some
outdoor work to take stresses off the walls. What is causing the ground to
shift? I'd find out and fix that if possible.
There really isn't a way of doing that after the block walls are
You have that option to grout the block cavities as you are building
the wall and reinforcing with rebar but once the wall is completed
you really can't change it in the ways you want to without tearing
it all out and starting again with a new wall...
As others have said, even properly designed and reinforced
structures crack when their foundations shift and settle...
You should pay more attention to what is causing the shifting
and correcting that problem before you go off and choose to
INCREASE the amount the building weighs by grouting your
block walls solid... Imagine how much worse the settling and
cracking problem would be if your building had fully grouted
block walls now ?
Do you have a water problem on your site ? Has new construction
in your area effected the water flow patterns through your property ?
Did you have a poorly engineered or designed foundation for your
site conditions ?
How long have you owned it, by now id think settling stopped, stopped
along time ago, is this new movement. How big a crack are you talking
about, if its maybe 1/4" and not moving then motaring would probably
fix it. You nned to get people out that can see it, we cant.
I would suggest a strutural professional be consulted first.
If it is basicaly sound, I seem to recall a liquid materal
with, I seem to remember fiberglass stands in a media that could be
painted or trowled onto a wall providing additional strength
stabilizing the wall.
Good Luck and do step one first.
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