[Cob] Rebar

[Henry Raduazo]

I have this entire article which I can send as a series of photographs if any one is interested in reading it.

Ed
On May 10, 2012, at 1:03 PM, Frank Hanlan wrote:

> Hi,
> 
> I distinctly recall that there was some testing done in British Columbia, maybe UBC, on a cob structure.  I think that it was mentioned on the coblist as much as 6 or 7 years ago.
> 
> I also found the following on a quick search.
> 
> New Zealand, fortunately, now has a comprehensive suite of earth building standards. This means that any building designed and built in accordance with them automatically meets many provisions of the NZ Building Code.
> The Standards are:
> NZS 4297:1998. Engineering Design of Earth Buildings (Specific Design)
> NZS 4298:1998. Incl Amendment#1 2000 Materials and Workmanship for Earth Buildings
> NZS 4299:1998. Incl Amendment#1 1999 Earth Buildings Not Requiring Specific Design.
> 
> They cover only those techniques that have been well investigated and used during the current 30 year long renaissance in earth building in NZ, namely mud brick, rammed earth, pressed earth brick, and to a limited degree, poured earth. Historic and rare methods are not covered although there is some information given on some new methods (in-situ adobe) or old methods (cob) currently under revival. There is also some information on earth floors, and plasters.
> 
> NZS 4297 “Engineering Design of Earth Buildings (Specific Design)” is for engineers and gives the data and formula required to successfully engineer earth walled buildings. It is a specialist document for use by structural engineers.
> 
> NZS 4299 “Earth Buildings Not Requiring Specific Design” is not a “cook book” as such, but is essential for earth building designers. It allows the design of relatively simple earth buildings that fall within its limits without requiring specialist engineering. There are many building details given, and bracing values for various types of earth walls from unreinforced through to totally reinforced earth walls, bond beam sizes and fixings, foundations, window jamb, head and sill details etc.
> 
> Sincerely yours,
> 
> Frank
> 
> 
> 
> 
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