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Repair of Crack in Concrete Foundation Wall

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Subject Author Date
Repair of Crack in Concrete Foundation Wall John A Reichert 10-14-2007
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Posted by John A Reichert on October 14, 2007, 3:39 pm
My house ( approx 30 yrs old) has a crack in the concrete foundation wall
which allows water to enter the basement when if the rain is very intense or
wind driven. I tried unsuccessfully to fill the crack from the inside using
hydraulic cement. I plan to repair from the outside this time and would
like some opinions to give the best chance of success. I was looking at the
hydraulic cement again, but if there is any movement in the wall, this would
likely crack the repair. Another options it to use a flexible calk designed
to repair cracks in concrete. Any thoughts?

Thanks,
John



Posted by willshak on October 14, 2007, 3:51 pm
on 10/14/2007 3:39 PM John A Reichert said the following:
> My house ( approx 30 yrs old) has a crack in the concrete foundation wall
> which allows water to enter the basement when if the rain is very intense or
> wind driven. I tried unsuccessfully to fill the crack from the inside using
> hydraulic cement. I plan to repair from the outside this time and would
> like some opinions to give the best chance of success. I was looking at the
> hydraulic cement again, but if there is any movement in the wall, this would
> likely crack the repair. Another options it to use a flexible calk designed
> to repair cracks in concrete. Any thoughts?
>
> Thanks,
> John
>
>
>

I had a crack in the poured concrete foundation wall. It ran from the
top of the concrete to about a foot from the footing. My house is 23
years old. It appears to be from settling, and was not wide enough for
concrete filler. I painted it with the dryloc paint and it seems to have
fixed it.
I would have to dig down about 7' on the outside to fix it.

--

Bill
In Hamptonburgh, NY
To email, remove the double zeroes after @

Posted by PeterD on October 14, 2007, 9:20 pm
On Sun, 14 Oct 2007 15:39:12 -0400, "John A Reichert"

>My house ( approx 30 yrs old) has a crack in the concrete foundation wall
>which allows water to enter the basement when if the rain is very intense or
>wind driven. I tried unsuccessfully to fill the crack from the inside using
>hydraulic cement. I plan to repair from the outside this time and would
>like some opinions to give the best chance of success. I was looking at the
>hydraulic cement again, but if there is any movement in the wall, this would
>likely crack the repair. Another options it to use a flexible calk designed
>to repair cracks in concrete. Any thoughts?
>
>Thanks,
>John
>

Last crack I had I took some 10 mil plastic, a bucket of tar, and went
to it... Hasn't leaked in ten years. Just make sure it is both clean
and dry before the tar is applied (I used roofing tar, no less).


Posted by Lou on October 15, 2007, 6:22 pm
You could fill it with an epoxy/ resin mix from the inside. However if
you don't
have the proper tools to inject it into the crack it won't do you much
good.
A pro will cost you about $350 and should give you a lifetime
guarentee.
If you dig up the yard, make sure you have a couple of feet of
foundation
showing on both sides of the crack. Clean, clean and clean the dirt
off. Tar
the heck out of it and then put a peice of 1-2" pink styro over the
tar. through
some 3 mil or thicker plastic over that and back fill. A lot of work
but well worth it.
Lou


Posted by John A Reichert on October 23, 2007, 8:35 pm
I cleaned the crack in the concrete and filled it with a calk made for wall
cracks to below the ground level. The crack began at the top of the
foundation wall and continued I think to the footer. In addition to the
calk, I built a small walk of concrete with a small slope away from the
house. This walk butted the foundation wall. I'm ready to claim success,
since we just had over 6 inches of rain in the last 24 hours and there is
not sign of water in the basement.

Thanks for the previous comments.
John


> You could fill it with an epoxy/ resin mix from the inside. However if
> you don't
> have the proper tools to inject it into the crack it won't do you much
> good.
> A pro will cost you about $350 and should give you a lifetime
> guarentee.
> If you dig up the yard, make sure you have a couple of feet of
> foundation
> showing on both sides of the crack. Clean, clean and clean the dirt
> off. Tar
> the heck out of it and then put a peice of 1-2" pink styro over the
> tar. through
> some 3 mil or thicker plastic over that and back fill. A lot of work
> but well worth it.
> Lou
>



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