Tuesday, September 30, 2008

Re: [papercreters] Re: Microscopic examination

Greetings,

I quit using cement except in situations where I want really light
panels, like for ceilings, about 10 years ago. However, my land is
heavy clay. Sand costs money, so does cement. Somewhere in the
archives are our test results of the comparions done 10 years ago. I no
longer have them on my computer as I have suffered several crashes since
they were done.

We have found better fire resistence with clay, using 1/1 ratio of
finely powdered clay to pulped [dryweight] paper, than we go with our
cement mixture, but I don't remember what mixture we were using. Our
clay mixture holds paint well, screws well and doesn't break easily.
Results totally depend on the clay you have available.

Bright Blessings,
Kim

Ernie Phelps wrote:
> --- In papercreters@yahoogroups.com, "Janoahsh" <janoahsh@...> wrote:
>
>> Thanks Ernie,
>>
>
> <snip>
>
> Quite welcome, just remember that it is speculation combined with my
> own experience. With that caveat in mind, I would say that cement is
> not necessary as much as it is convenient. Any pozzolan (or many other
> binders for that matter) could be used in it's place, but cement is
> plentiful and not terribly expensive. Clay and other pozzolans can be
> difficult to source or expensive, depending on your location. That is
> not to say that the PC community is not open to the idea, as evidenced
> by many other posters references to lime, clay, fly ash, Darjit, etc.
>
> Best advice I have is what SG says alot, start small and do lots of
> tests before you use it in something big. And always be safe. You can
> mix up another batch if it goes bad, but growing back an extremity is
> more difficult.
>
> - Ernie
>
>
> ------------------------------------
>
> Yahoo! Groups Links
>
>
>
>
>

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