9/11 - WTC/Pentagon/Shanksville m.m - Tråd Nr 2

3. Aluminum Reactions in the Rubble Pile
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As previously noted, molten aluminum burning on contact with concrete produces a calcium oxide/silicate slag covered by a white aluminum oxide ash which serves to insulate and contain the aluminum puddle, keeping it hot and burning….. There is evidence that the WTC rubble pile was not just hot, but on fire, and it stayed that way for a long time.
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Summary and Conclusions
In this article I take a close look at the role of aluminum in the World Trade Center (WTC) disaster of September 11th , 2001. Metallic aluminum was present in the WTC on 9-11 not only as the familiar shiny cladding on the faÄade of the Twin Towers, but also as a major component of the Boeing aircraft that penetrated deep into the cores of these buildings. The article first reviews what is known about the physical condition of aluminum in the Twin Towers before, during and after the terror attacks and discusses the evidence for the formation of molten aluminum from the heat of the fires. It is concluded that as much as 10,000 kg of molten aluminum flowed from the Boeing 767 airframes lodged in the upper floors of the Towers prior to their collapse. The chemistry of molten aluminum has also been reviewed and the corrosive and highly reactive nature of this material highlighted. It is shown that molten aluminum readily undergoes violent explosive thermite reactions when dropped into slurries of lime, gypsum or rust – materials that were present in great abundance in the impact zones of WTC 1 & 2, a place where fires raged and aluminum was being heated above its 550 C melting point on the morning of 9-11.

Based on these findings it is proposed that the formation of molten aluminum in the Twin Towers just before their collapse, accounts for most of the startling and controversial observations that accompanied the spectacular destruction of these massive structures. It is suggested that molten aluminum initiated the global collapse of each Tower by burning through key structural supports in the impact zones. Molten aluminum-thermite reactions could explain the rapid intensification of the fires and the many detonations seen and heard moments before and during the collapse of each Tower. Molten aluminum-thermite explosions - reactions that are quite capable of shattering ceramic or metal molds during aluminum casting - would help to explain the much-debated pulverization of the WTC concrete. And, remarkably, the production and combustion of hydrogen gas by reactions
of hot aluminum with high pH water at ground zero, explains why the WTC rubble pile continued to burn for so long.

http://www.911myths.com/WTCTHERM.pdf

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Based on the calculated trajectory of UA Flight 175 inside WTC 2, the forward cabin area of the aircraft ploughed into floors 80 to 82 of the northeast corner of the building. Thus the 3200-liter oxygen cylinder carried in the crew compartment of Flight 175 came to rest precisely in the area where the bright yellow glow was to later appear. As many videos show, about 50 minutes after impact, fires were well established in localized areas of the northeast corner of WTC 2 – these fires would have gradually heated the entire forward fuselage to temperatures in excess of 200 C. We therefore suggest that the intense yellow glow seen moments before the collapse of WTC 2 was caused by the discharge of the onboard oxygen cylinder and the subsequent enhancement of the pre-existing fires.
http://www.911myths.com/WTCTHERM.pdf