SB: Re: Topping off the walls/insulative value &creep + Casas que Cantan 2001 Music CD/Booklet

["Robert W. Tom" <archilogic@yahoo.ca>]

11/30/01 3:16:41 AM, "Steve Lewis" <seaweedsteve@newmexico.com> wrote:

> When we refer to numbers from a book in Germany about an application for
>what are probably  rammed light-clay wall panels, we are not really getting
>info on crack-stuffing.  To be most accurate, we would want to check the
>density of straw-clay stuffing and find where it lands on the scale between
>bales, light clay and cob.  I sense that it is closer to bales than light
>clay.
>
>2)  Assuming I do RAM it in with a tamper, say,  (I don't)  and get a
>light-clay density with  R- 1.4 per inch, what do you have at 24 inches?
>R-34.  Would you call that "minimal" ?

Looey and Seaweedy;

As "I-did-the-legwork-Lootvik" posted the other day, 
the range of densities of the straw/clay mixtures in the data
presented by Gernot Minke ranged from 300 kg/m^3 (~18.73 lbs/ft^3)
to 2100 kg/m^3. 

Densities in the 300 -1200 kg/m^3  (19 -75 lbs/ft^3) range are considered to
be "leichtlehm" or "light straw/claw" in Murricanspeak.

The straw/clay doesn't care what procedure is used in its placement
nor does it care what name is applied to it nor does it care
as to the nationality of the scientist studying it. 
What matters is the resultant density, in determining its conductivity.

Years ago, Sunny John (Cruikshank, of Colorado ?)) posted some 
observational density data for various straw/clay mixtures that he 
had played with.