Posted by Jerry in Idaho on Wednesday, September 12, 2007 at 16:40:55 :
In Reply to: Re: The chemistry of heated rust? posted by David Sherman on Wednesday, September 12, 2007 at 02:04:35 :
This makes me wonder about the powers that make up building codes. There is a new electrical code requiring a portion of the re-bar be left stubbed out of the top of the foundtion so the electrician can connect a ground wire to it. I'm not sure I understand this, because I really don't know if concrete is a conductor or an insulator. If it's an insulator, then it seems like a waste of time. At any rate, this piece of re-bar would obviously be vulnerable to rusting, resulting in the problem you mentioned. I wonder how people got along without all the watchdogs we have now to keep an eye on us? Ha Ha
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