I'm wondering why you want to form the block to contain conduit etc when the dry blocks are so easy to cut through with a chainsaw or sawzall. I make my blocks by the "brownie" method. I pour into a form 30" x 12' and cut them wioth a lawn edger when they are still wet but set up enough to hold their shape. I lay them up like bricks but make the mortar with slightly more paper and leave out the pumice, or sand in your case. I find this rather simple. I have cut the blocks with the sawzall with a long deeply serrated blade. You're not crazy. Hey if you are crazy then that means I'm crazy too and we can't have that! Judith
To: papercreters@yahoogroups.com
From: mdmiller1@gmail.com
Date: Wed, 25 Jul 2007 23:13:52 +0000
Subject: [papercreters] modular block
I completed a test pour of a modular papercrete block that would be
laid up with standard coursing, could contain elec conduit and
rebar..... it was time consumming. I built the form out of plywood,
coated it very heavily with sealer, and it probably won't be able to be
used again due to warpage.
Here's some pics: http://www.domovitae.com/fcrete/
I experienced quite a bit of shrinkage vertically. In rough numbers
about 10%, and the mix was very stiff and contained quite a bit of sand
and portland. Total dry mix weight including portland, paper, sand,
etc... was about 9.5 pounds. Block size 8"x8"x16"
Its a little clunky I had a few gaps in the pour, but generally I'm
satisfied with the end result.
Welcome comments.... or tell me I'm crazy...... Duane
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