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Politics : Bush-The Mastermind behind 9/11?

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To: Raymond Duray who wrote (9149)12/6/2004 5:38:31 AM
From: sea_urchin  Read Replies (2) of 20039
 
Ray > However, above that level the means of fireproofing the structural steel columns was a spray-on asbestos containing foam that was very friable. Most of the columns were additionally segregated from the occupied portions of the building by a two-hour rated assembly consisting of two layers of "Type X" gypsum wallboard mounted on steel stud framing.

I gusee I was confused by this picture which shows the central steel "columns" enclosed on something but there is no mention of what.

911research.wtc7.net

Anyway, what do you think accounts for what happened to these four inch thick, central steel "columns"? It seems all that steel broke up into small fragments.
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