I have left papercrete in my mixer for a couple of days and it never "set". I was able to use that papercrete, and after being placed where it could drain, it finally cured and got hard. Don't expect papercrete to act like concrete, it won't.
Based on my experience, it might take a very long time for slurry in a watertight mold to get firm. Please let the list know how it turns out when you try it.
spaceman
prrr.t21@btinternet.com wrote:
Hi Maybe I should have been clearer: the plan is to place the slurry into a watertight mould, and once the cement has set to green stage demould it. This should reduce the slump that occurs before the cement sets. NT
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