Spaceman wrote:
>Cylinder break tests are for concrete. Pc isn't concrete, it is more like a wood product.
>http://starship-enterprises.net/files/papercrete%20strength%20tests.jpg shows strength tests done at NMSU.
>http://starship-enterprises.net/files/papercrete%20formulas.jpg gives formulas from back in the dark ages, party like it's 1999.
>
Both good reading. PC is *way* softer than I expected. Softer
than most woods used in construction. 260psi is softer than
basswood. [and concrete used in footings is abt 5000psi, if I recall
correctly]
They don't say on that page how long they cured the samples. [or am I
missing that?] 1 week, 1 month, and 1 year samples would be
interesting.
So what would be a good test to see if a particular PC mix was good
enough-- for walls or fill?
And is there a good way to test R-value? Heat sink value?
Jim
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