[Greenbuilding] please rant: thar she blows : (Substitutes for radiant flooring thermal mass)

[Corwyn]

On Apr 10, 2007, at 03:51, Chris Green wrote:
> The tubing used in radiant flooring can easily take the forces 
> generated
> in ramming up an earth floor. One of my former bosses said he watched a
> loaded concrete mixer truck drive over tubing attached to rebar on one
> job. It didn't crush the tubing. It would be interesting to find out
> exactly how much pressure it does take to crush this stuff....that's a
> some day job.

I was instructed to pressurize the tubing with air while it was being 
covered.  If the pressure was greater than the pressure in the tires of 
the cement truck, then it would be ok.  Don't think that translates to 
earth ramming forces; or at least I would want a professional opinion.

Thank You Kindly,

Corwyn

-- 
Corwyn
Kermit didn't know the half of it...
http://www.greenfret.com/
corwyn at greenfret.com