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Re: Slab on grade Crack repairs

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Ed:

The materials ( water catalyzed urethanes) are injected into the crack under
low pressures. Holes are drilled to intersect the crack about half the slab
depth with adjustments made to avoid reinforcing steel. Materials
information can be obtained from Multiurethanes at  www.multiurethanes.com
or www.webac.com  these suppliers can provide with further information as to
possible installers in your area.

The catalyzed material is deep within the crack beyond the degrading effects
of minor surface wear and UV. Our experience indicates that this solution
will outlast topical applications of surface sealants. In critical
applications, we have to ask ourselves who be there fix it in 5 to 10 years?

Ken Johnson
Concrete Technologist

----- Original Message -----
From: "Ed Najjarine" <enajjarine(--nospam--at)permasteelisausa.com>
To: <seaint(--nospam--at)seaint.org>
Sent: Monday, March 03, 2003 1:31 PM
Subject: RE: Slab on grade Crack repairs


> Ken,
>
> Thanks for the info. Is there any specific materials, specific supplier
that
> you can refer me to, also, do cracks of an average of 1/8" wide, need to
be
> widened to receive the polyurethane grout.
>
> Thanks
>
> Ed
>
> -----Original Message-----
> From: Ken Johnson [mailto:kejohnsn(--nospam--at)direct.ca]
> Sent: Monday, March 03, 2003 12:44 PM
> To: seaint(--nospam--at)seaint.org
> Subject: Re: Slab on grade Crack repairs
>
>
> Inject with a water catalyzed polyurethane grout. It can give a full-depth
> water stop and is flexible enough to handle movement.
>
> Ken Johnson
> Concrete Technologist
>
> ----- Original Message -----
> From: "Ed Najjarine" <enajjarine(--nospam--at)permasteelisausa.com>
> To: "SEAINT (E-mail)" <seaint(--nospam--at)seaint.org>
> Sent: Monday, March 03, 2003 12:32 PM
> Subject: Slab on grade Crack repairs
>
>
> > Gentlemen,
> >
> > I have a case of a long crack in a Post tensioned Slab with water
leakage
> > through it. they've used epoxy on it, it didn't work, any ideas for
> > permanent repair.
> >
> > Thanks in advance,
> >
> > Ed Najjarine, SE
> >
> >
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