Re: [papercreters] Comparison of starting to end product volumes of papercrete

A pile of newspaper about 24" tall, 10.5x13.5 works out to about 2 cubic feet. A sack of cement is about a cubic foot. Remember that the cement becomes dispersed throughout and between the paper fibers so doesn't really add volume.

Throw those into a tow mixer and add water to get about 25 cubic feet of wet sloppy mix. Drained and placed into forms that gives you about 15 cubic feet of finished product. Adding other things like sand, perlite, etc. will add to the starting cubic feet but should also increase the yield by reducing the shrinkage during runoff and curing. I don't normally add anything other than paper, cement, and borax so someone else will have to say how much difference other additives make.

spaceman  All opinions expressed or implied are subject to change without notice upon receipt of new information.  http://Starship-Enterprises.Net

On 3/1/2011 12:07 PM, Dan Nave wrote:

Has anyone ever compared what the difference in volume is of the materials used in making papercrete in relation to the end product?  (That would be materials not including water I would think since so much runs off when making papercrete.)

 

Such as, if you use so many cubic feet of paper and cement, you get so many cubic feet of finished papercrete.

 

And, it would be interesting to compare it to the volume ratio for regular cement mixes too.

 

Dan

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