This is the incredibly powerful explosive that evidently pulverized the 110 four-inch thick light-weight concrete floors of each tower. Besides reducing these concrete layers to pyroclastic dust, this super-thermite also destroyed everything on each floor and blew everything to smithereens and propelled the huge dust clouds of pulverized debris down the streets of lower Manhattan.
The floors of the Twin Towers were exploded in a way that indicates that the super-thermite must have been in direct contact with the four-inch thick concrete floors or the metal pans the concrete was poured into. This is fairly obvious because these structures were primarily steel and glass towers with concrete floors.
The only other surfaces would have been the temporary dry wall constructions on each floor, the suspended ceilings, plumbing, and elevator shafts. There was not much else in the way of surfaces that could have been applied with super-thermite"..scroll down to "The Exploding Floors of 9-11"..read more
Scientists Find Explosives in World Trade Center Dust..read more
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