What is the objective here? To use up some gypsum you have lying around? Why not just use paper? it is free and works great.
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To: papercreters@yahoogroups.com
From: steven.ivy@gmail.com
Date: Wed, 2 Feb 2011 06:29:53 +0000
Subject: [papercreters] Idea... Gypsum and a box of rocks
What would happen if you packed a form with rocks and then poured in gypsum and let it set?
Yes, I know gypsum is pretty soft but in this system it is really only the binder the rocks themselves will be carrying most of the weight and of course you would want to seal the block with a breathable sealer before use to prevent water from perhaps one day entering the gypsum.
Advantages...
Each big brick could be batch built alone (and would be ready to use 20 minutes after pouring.
You set up the form on top of the last poured row of blocks, you fill in the rock, you mix enough gypsum for the one block, you pour it, you wait 20 minutes you break down the form and set it up for the next block.
I am pretty sure that gypsum will breath (unlike straight . Is anyone here sure about that?
I just wonder how expensive plain dehydrated gypsum is?
Another idea...
What would happen if you could QUICKLY mix up anhydrous gypsum and a slurry of water and paper fibers?
Obviously the setting time and drying time would shrink greatly, but just how strong could the blocks be?
Thanks: Steve
Yes, I know gypsum is pretty soft but in this system it is really only the binder the rocks themselves will be carrying most of the weight and of course you would want to seal the block with a breathable sealer before use to prevent water from perhaps one day entering the gypsum.
Advantages...
Each big brick could be batch built alone (and would be ready to use 20 minutes after pouring.
You set up the form on top of the last poured row of blocks, you fill in the rock, you mix enough gypsum for the one block, you pour it, you wait 20 minutes you break down the form and set it up for the next block.
I am pretty sure that gypsum will breath (unlike straight . Is anyone here sure about that?
I just wonder how expensive plain dehydrated gypsum is?
Another idea...
What would happen if you could QUICKLY mix up anhydrous gypsum and a slurry of water and paper fibers?
Obviously the setting time and drying time would shrink greatly, but just how strong could the blocks be?
Thanks: Steve
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