[Ferro List] Microcracking

[Lyle Gordon]

I have tried a similar product made by BASF Admixtures, Tetraguard. I
think the chemistry of Eclipse and Tetraguard are quite similar. I
didn't quantify the shrinkage but it appeared to be effective. The
literature suggests that it does reduce shrinkage and it didn't affect
the strength or workability of my mix but note that you need quite a
lot of it compared to something like air entrainer.

On another note the CTS Komponent produces a similar end result to
shrinkage reducing admixtures but it works in a different way. The
admixtures work to reduce shrinkage (makes sense based on their name)
while the Komponent is a cement that actually expands on curing which
can offset some/all of the shrinkage produced by the curing of the
regular cement in the mix. Mostly a technicality but its interesting
to note.

Hope that helps,
Lyle

On Jan 12, 2008 8:55 PM, Peter Payne <tfe at sover.net> wrote:
> Hi Chris,
> I have no experience with this, but a respected colleague recommended it.
> http://www.ctscement.com/Komponent.asp
> Peter
>
> Christopher Glasspool wrote:
> > Mud-daubers,
> > Has anyone tried the anti-shrinkage admixture Eclipse, manufactured by grace?
> > - chris
> >
> >
>
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-- 
Lyle Gordon
Project Manager
Concrete Canoe Team
University of Toronto
10 King's College Road, Suite B740
Toronto, ON. M5S 3G4

(416) 457-2753
lyle.gordon at utoronto.ca