[Cob] cob and earthquakes

[Buckaroo Bonzai]

Kyle's right about Menke's book, but way off on psi of
compressed earth bricks and of earthquakeness of
earthen structures.

> The most likely source of hard numbers is Earth
> Construction Handbook: The
> Building Material Earth in Modern Architecture by
> Gernot Minke, which I see
> is now up to $76.


> A company with a block press, using
> 4000psi forming pressure, is  bragging about getting
100psi.

Looks like Kyle is off a decimal point.

Without adding any stablizers a normal strenth is 300
to 400 psi, good enough for the National Building
Code.  With stabilitizer you can get up to 1500 psi or
more.  




__________________________________
Do you Yahoo!?
Yahoo! Mail SpamGuard - Read only the mail you want.
http://antispam.yahoo.com/tools