[AF] The SF Overpass

[Dana Puopolo]

I'm sure the steel was not left naked, that some other equally effective fire
retardant was placed on the steel. Asbesos was primarily used because it was
plentiful, effecive and very cheap. Other flame retardants were available in
the mid '70's.

-D

------ Original Message ------
Received: Tue, 01 May 2007 02:32:09 PM EDT
From: "Glen Kippel" <glen.kippel at gmail.com>
To: "The Alternate Frequency" <af at radiolists.net>
Subject: Re: [AF] The SF Overpass

On 5/1/07, Phil Alexander <dynotherm at earthlink.net> wrote:
>
>
> If memory serves, the twin towers DID have asbestos concrete sputtered
> over
> the beams part way up the towers and further application was stopped by
> the environmental outcry WRT asbestos. Beyond that point, I'm not sure
> if the steel was naked or some other less effective coating was used.
>
> ---------------------------



That is how I remember it.  It was deemed too expensive to remove the
asbestos that had been already installed, so it was allowed to stay in
place.
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