Greetings and thanks for all the comments.
The mix I have settled on is :
Pulped Paper 75% by vol and 22% by weight
Cement 6.9% by vol and 20.7% by weight
Sand 5.6% by vol and 17.1% by weight
Clay 12.5% by vol and 40.15 by weight
My test indicated pulped drained paper is about 1.2 lbs per gallon.
The above mix gives me a block with an average weight density of about 31 lbs per cf.
For our area we need an insulating exterior wall. That is why a dense wall like adobe with thermal lag is not suitable. I think it is import to keep block density low to attain the reported R2 per inch value. I hope to be able to get some testing on compresive strength in the near future.
As far as boots I have a CMU stem wall 12" above finish grade. I am using a parge coat of asphalt and lime on top of the stem wall as a moisture break. No other termite barrier is planned. Does this sound like something that will work.
Clyde can you tell me what the weight density and R value for the mix your suggest is? Do you have any data on comprehensive strength?
Thanks so much for everyone's comments.
Best wishes
Murry Holley
From: "Kim gartht@windstream.net [papercreters]" <papercreters@yahoogroups.com>
To: papercreters@yahoogroups.com
Sent: Friday, December 18, 2015 4:27 PM
Subject: Re: [papercreters] Re: Termites in Papercrete
The original formula was 70% paper, 20% sand and 10% portland. You are suggesting 66% portland to 33% paper. Why????? Testing on roof panels, for burn protection found that they go out and don't continue to burn at 50% paper, 50% portland.
I too found that lime made papercrete weak. Painting it with whitewash when done works well. I would like to hear more about the formula that was used, what kind of boots the building has as well as if there are any termite guards in place.
I too found that lime made papercrete weak. Painting it with whitewash when done works well. I would like to hear more about the formula that was used, what kind of boots the building has as well as if there are any termite guards in place.
On 12/18/2015 2:12 PM, clydetcurry@yahoo.com [papercreters] wrote:
Lime in papercrete makes it hold too much water. You should have 2 lbs. of cement per pound of paper.
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Posted by: Murry Holley <murry.holley@yahoo.com>
