[Cob] hybrid systems(cobwood)
Taylor Publishing-DirtCheapBuilder
tms at northcoast.com
Tue Nov 11 18:03:30 CST 2003
Here in the mountains of North Carolina cob and cordwood make the most
sense. Besides tourism, our only real industries are lumber and rock. There
are always wood scraps available for free/cheap and I have had good success
so far using rock dust in the place of sand. The price difference alone
between rock dust ($9.50 a ton) and sand ($50.00 a ton) make rock dust the
obvious choice as an aggregate in cob.
>>
>> Phil Hawn
>
As has been mentioned by Phil and others on various lists, using what
you HAVE is often the best option. Cob and versions of "cobwood" (
several people have called it that) paper cob- paper adobe, etc etc all
all just convenient names. German methods are far ahead of our use of
sawdust and chips...but it is catching on in parts of the US.
If people have wood chips and clay then this method is faster and easier
than straight cob, and requires only simple tools for faster building.
Combinations of cob on south walls, and insulated "wood chip clay"
cob-crete, sawdust-crete" etc on North and other walls can provide
excellent low cost options.
After seeing how much work light straw clay is ....either hand tossing
labor, even requiring big mixers that feed water-straw-clay trough like
a sausage maker-- I still like the sawdust-woodchips and clay best. If
desired rental of a basic mortar mixer ( or if power tool use is an
issue) then hand mixing and forming is quick and easier on the body.
Hybid use of materials seems the most logical to get a dwelling built.
Ms. Charmaine Taylor/ Taylor Publishing
PO Box 375, Cutten CA 95534 707-441-1632 books at dirtcheapbuilder.com
http://www.dirtcheapbuilder.com http://www.papercrete.com