I respectfully disagree. While papercrete does tend to shrink away from forms, it does stick well to surfaces when sprayed. My large dome was mostly sprayed onto metal studs and expanded metal, and the papercrete stuck without problems to all the metal and to the other papercrete. At that time (2000-2001) we were taking a break one day and started tossing papercrete balls at a metal shed. I just looked out, and several of them are still there after seven monsoon seasons - including a record flood year three years ago. Also, the truck that drives my no-tow mixer has to be scraped clean once in a while to rid it of all the pc that sticks to it. If you use lime in your mix the pc will stick even better.
Spaceman
JUDITH WILLIAMS wrote:
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