Re: [papercreters] Re: Roman Concrete

Perhaps a trip over to wikipedia is in order: http://en.wikipedia.org/wiki/Roman_concrete

The lead ingredients are:  gypsum (ah ha, this is why I got triggered on this topic from earlier post today), lime and volcanic dust/ash.  It can be mixed just like regular concrete.  My memory is whoever provided the little writeup on this concept suggested that the paper fibers themselves would be transformed to ROCK in the process by adding cellulose and/or carbon.

:)

Don't know anything about the magnesium oxide cement though.  What you shared though sounds like similar traits to Roman Concrete.

What I was thinking is, doing Spaceman's idea of spraying wetted paperpulp (only pulp) on shipping containers to provide insulation.  Think of this like paper mache.  Then once my shipping container (or RV trailer or whatever cheep object I can obtain like a Greyhound bus perhaps) is feeling nice on the inside in hot weather, I'm ready to apply the final touch, the hardening coat on the exterior.  Thinking of Roman Cement for the strength factor and for the water barrier because when I'm done I'd like to cover this building with dirt.

On Wed, Sep 8, 2010 at 4:28 PM, stick0boy <stick0boy@live.com> wrote:

 

do you mean magniesium oxide cement? i was looking at it and although its stronger, takes less energy to produce, and asorbs co2 it is ~ 3 times as much if you can get it ... but you can build things thin. i saw a few roof that are a fabric with a MO/phosphorus applyed . they built a house in one day and was completely cured in 1 hour and ready to move in the next day. it has a affinity for cellouse it bonds/saturates rather than coats the exterior to make a grid so to speak.. there is a better way to discribe it but idk..
in short as far as papercrete i dont think it will be as good unless you can mix it. if you wanted a very strong say 2 inch wall with wood chips/straw/ or saw dust agrigate sounds good

__._,_.___

Your email settings: Individual Email|Traditional
Change settings via the Web (Yahoo! ID required)
Change settings via email: Switch delivery to Daily Digest | Switch to Fully Featured
Visit Your Group | Yahoo! Groups Terms of Use | Unsubscribe

__,_._,___