From: "David-"The Hern"" <jerrydave1@sbcglobal.net>
>Hi Ernie, FWIW, we are going to make simple slabs of papercrete to
>use as covers for our stacks of firewood.. right now we are playing
>with the design, and amasssing cardboard and paper. Plan to use a
>recipie found on a youtube video from T or C N Mexico.
>
>30 # cement, 18#joint compund(30 minute), 1# boric acid, 90# paper.
>Supposed to make a 4ft by 8 ft slab 4 inches thick.
I don't think you'd want to use drywall compound for outdoor use like that. I've heard of people using that to make the papercrete smoother for sculptures, but for outdoor utility use, I think that would make it too weak. I haven't done PC with drywall mud myself, but I can definitely attest that it doesn't weather well, as I've left pan scrapings outside in the weather before and even after it's well dried, it still crumbles when it gets wet.
There was some discussion on this group about that awhile back. You might search the message archive and check it out for more information.
Greg
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