Metakaolin pozzalon reacts with the excess lime in portland cement, it
makes it into super cement while radically reduceing the problems that
papercrete has with holding on to water--- In
papercreters@yahoogroups.com, "Janoahsh" <janoahsh@...> wrote:
>
> Thank You,
>
> That sounds like a really good mix Eli. What I was referring to was the
> cement mix for the papercrete. Most papercrete is made using Portland
> Cement, but I've heard of others using Metakaolin and Slacked Lime.
I am
> curious as how the different applications compare. I remember that
> Metakaolin increases fire resistance. Is it more or less brittle
when dry,
> does it retain water to a greater degree? I'm curious if it might
be an
> alternative to using Portland. I'm ready to begin testing again and
thought
> to try some clay mixes.
>
> Janosh
>
>
>
> _____
>
> From: papercreters@yahoogroups.com
[mailto:papercreters@yahoogroups.com] On
> Behalf Of Eli Sutton
> Sent: Monday, January 28, 2008 1:14 PM
> To: papercreters
> Subject: [papercreters] Re:Mortar
>
>
>
> I can't speak to pluses and minuses but I can tell you how we make a
very
> successful mortar for our papercrete block house under construction.
>
> It is based on a traditional mortar mix. We make our slurry from
newprint to
> the consistency of oatmeal with the emulsifier shown in the Photos
section.
> We wet the blocks before laying up.
>
> Into a mixer we throw an almost full 5gal bucket of sand, 1qt of
lime, 1qt
> of Metakaolin, and 6qts of Portland. Mix. Add about 12qt of slurry
adding
> gradually until the consistency is right. Mix about 7 min.
>
> I hope this is useful.
>
> Eli
>
> BTW check out some pix of the project at
> http://picasaweb.-google.com/-eli.verdesystems
>
>
>
>
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> 10:59 AM
>
>
>
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