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Showing posts from June, 2009

Papercrete Recipes updated September 16, 2014

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This update is overdue. My recommendation for papercrete at this point, after a few years of experimentation, would be to start with that good ol' three parts substrate to one part Portland cement mix. Since the days of my mower-towed "mini-mixer" I have dabbled with using cellulose insulation, peat moss, vermiculite, and sand as substrate and have come to rely on the three to one mix, substituting one substrate for another depending on it's use.The recipes I posted years ago made for a weak mix. Two parts paper to one part sand to one part Portland cement would be a better starting place. I mix smaller batches by hand these days. The papercrete wall in the picture is covered with a heavy layer mortar made of sand and Portland cement and laced with either joint compound or builder's lime added for plasticity. Both the wall and the sculpture still stand. Just remember that everything posted here is in the spirit of experimentation. Thanks for reading. Mike

Building A Papercrete Wall, Part 1

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What I'm about to say would have probably been obvious in a couple minutes anyway, but I'll go ahead and say it. I know little about building. The angels generally protect me, though they are not beyond letting me spend some extra money. The 8x16 ft. shed I constructed about twenty years ago probably has more wood in it than my house does. If there is ever a tornado, that shed will be the place to go. On the other hand, it's still standing despite it's many structural insufficiencies. Admittedly, I had to replace the roof. Anyway, one day, I know, my luck will probably run out. Meanwhile, I thought I'd try building a wall with papercrete. My footing was some old cement blocks that were laying around. My plan was to drive some old metal fence posts, which were also laying around, through every other hole. The post would support the wall, which I imagined would be light and perhaps a little more flexible than conrete. After I filled in the holes in the blocks with co