[Greenbuilding] Radioactive HVFA Concrete???

[Beatrice Dohrn]

So what does this really mean for one considering using as much Flyash as possible to reduce the amount of cement in the mix?  Help!

"Reibstein, Rick (EEA)" <Rick.Reibstein at state.ma.us> wrote: Radionuclides are present in coal fly ash because they are present in
coal.  

Rick Reibstein
MA Office of Technical Assistance for Toxics Use Reduction 

-----Original Message-----
From: greenbuilding-bounces at listserv.repp.org
[mailto:greenbuilding-bounces at listserv.repp.org] On Behalf Of Corwyn
Sent: Tuesday, February 19, 2008 1:07 PM
To: Mary Bull - Greenwood Earth Alliance
Cc: 'Greenbuilder list'
Subject: Re: [Greenbuilding] Radioactive HVFA Concrete???


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


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Beatrice Dohrn
541 746 1919 (h)
347 589 9053 (c)
       
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