I think the question was to know the 'mix design', not 'mixer design'.
A mix design in concrete is typically the number of pounds of Portland cement, to pounds of dry sand, to pounds of rock/aggregate (and size of aggregate), to pounds of water. Other things could be included like flyash, crushed slag, and other additives. But everything is done by weight. Then knowing how much of the mix makes a cubic yard. All this helps re-compute the amount of components to be able to get the amount of concrete you want all mixed right. Often concrete is mixed in a small batch to make a 'standard cylinder' that it put through a crush test to compare mix designs. So keeping track of mix designs allows you to make the 'same concrete' the same way each time. Kind of required when putting in highways or big buildings. Yes, the old 3-2-1 plus enough water to make it pourable mix works, it is just not consistent (3 shovels of rock, 2 of sand, 1 of cement). This is kind of the general concrete mix many folks use all over the world, just not high tech!
Papercrete can be calculated the same way.
BTW, water is 8lbs / gallon, and rock is about 64lbs/cubic foot, and a cubic yard is 27 cubic feet. Getting a good scale that will measure 150+ lbs that is good for 'outside use' (like at the mix site) is great to help make good concrete.
I would like to know good mix designs for papercrete too!
--- In papercreters@yahoogroups.com, Glenneth Lambert <glenneth@...> wrote:
>
> Plans for mixers can be gotten @ livinginpaper.com
>
> Sir Glenneth - from " the land of Cobb "
>
> http://www.TheFINE-ARTcafe.org/glenneth
> On Oct 4, 2007, at 6:36 PM, achmad basuki wrote:
>
> > Hi, I am intersted to know papercrete and I want to use it to my house
> > building. But I am not sure about papercrete mix design. Who knows
> > papercrete mix desisn? Please send me information abaout it. Thank you
> > before.
> >
> > Achmad Basuki
> > Solo-Indonesia
> >
> > Moody friends. Drama queens. Your life? Nope! - their life, your story.
> > Play Sims Stories at Yahoo! Games.
>
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