[Greenbuilding] Radioactive HVFA Concrete???

[Corwyn]

On Feb 19, 2008, at 10:52, Mary Bull - Greenwood Earth Alliance wrote:
> ***It was recently reported that the fly ash waste from coal-burning 
> power
> plants that has been used as a hardener to reduce the amount of cement 
> used
> in concrete may be radio-active (from nuclear power plants run by the 
> same
> utility company--I certainly wouldn't put it past them). Has anyone 
> any more
> info?*** I'm not using it in the cottage construction now.***

Why stop using it, when you can just test it?  Get a geiger counter, 
check the concrete as it arrives.  If it exceeds whatever standard you 
decide on, send it back.  Concrete company won't have many returned 
trucks before they make sure that it doesn't happen.  Then we all 
benefit (shorter feedback cycle is always an improvement IMHO).

Thank You Kindly,

Corwyn

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