A violent chemical reaction between molten aluminium from the aircraft and water from the sprinkler systems in the World Trade Centre felled New York’s Twin Towers on September 11, 2001, a leading scientist has claimed.
“If my theory is correct, tonnes of aluminium ran down through the towers, where the smelt came into contact with a few hundred litres of water,” News.com.au quoted Christian Simensen, a scientist at SINTEF, an independent technology research institute based in Norway, as saying.
“From other disasters and experiments carried out by the aluminium industry, we know that reactions of this sort lead to violent explosions.”
Simensen rejects the official report that blames the collapse on the overheating and failure of the structural steel beams at the core of the buildings.
Given the quantities of the molten metal involved, the blasts would have been powerful enough to blow out an entire section of each building, he said.
This, in turn, would lead to the top section of each tower to fall down on the sections below.
The sheer weight of the top floors would be enough to crush the lower part of the building like a house of cards, he said.
He said that the aluminum industry has recorded more than 250 water-aluminum explosions since 1980, and that at one point aluminum maker Alcoa did an experiment involving just 44 pounds of molten aluminum and 20 liters of water, along with a small quantity of rust.
“The explosion destroyed the entire laboratory and left a crater 30 metres in diameter,” Simensen said.
By comparison, the aircraft carried 30 tonnes of aluminium into each of the towers, according to his calculations.