The block I did my 5 minute torch test on had equal amounts of cement, pumice, and paper. The flame was 1 inch from the block. At the end of 5 minutes there was a charred area which I could touch with my bare finger. When the weather warms up I'll make blocks of several different mixes and test them all. I think the paper and enough pumice should be good, but tests will tell.
To: papercreters@yahoogroups.com
From: gartht@txcyber.com
Date: Fri, 25 Jan 2008 09:54:32 -0600
Subject: Re: [papercreters] Re: New Here
Greetings,
If you use enough clay, such as 1/1 paper/clay by weight, there are no
hazards in a fire situation. You do not have to add the stuff that
makes the place unliveable for those who are chemically sensitive. Do
your own fire tests, make a block and throw it in the fire. How long
does it take for the fire to affect the block? Does it go out by itself
when you remove it from the fire? If not, add more clay until it does.
For our clay, that is 1/1, others may find their naturally occurring
products are different.
This stuff is a godsend for those of us who are chemically sensitive to
the world, let us not start a bunch of comments that the government
could make into rules that ruin one of the few building material we can use.
Bright Blessings,
Kim
slurryguy wrote:
> I have little doubt about Judith's experiences.
>
> I urge GREAT CAUTION. Papercrete that does not have any cement
> content can be HAZARDOUS in a fire situation.
>
> Please make sure you build SAFELY. Borax, lime, or other materials
> can be added instead of cement to limit it from sustaining
> combustion. Make sure you DO SOMETHING to the paper to keep if from
> burning.
>
> COMPLETELY UNTREATED paper blocks can be ignited by a very small
> spark and very slowly smolder for hours or even days and completely
> turn to ash.
>
> This subject has been posted about frequently. Many messages are in
> our archives. "burn" "fire" "smolder" "borax" "flame" are all good
> search terms to help you find past messages on this topic.
>
>
>
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