SB: Tempered Glass recyclable was RE: Re: appropriate thermal mass-he atstorage

[Melvin Willis <melvin.willis@sait.ab.ca>]

> -----Original Message-----
> From: Rob Tom [mailto:ArchiLogic@yahoo.ca]
> 
> Ideally, the glass would be diverted-from-the-waste-stream tempered 
> glass which cannot be recycled, and as such would be in keeping with 
> using diverted agricultural wastes for the walls.

Did you mean laminated safety glass?  Tempered (and heat treated) glass
contains all the same components as plain glass.  It has just been evenly
heated and then rapidly cooled to put the outside surface in tension
relative to the centre.  

Melvin Willis
Calgary, AB Canada
--
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