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New Theory on World Trade Center Collapse Blames Explosive Chemical Reaction [Molten AL + H20]
PopSci.com ^ | 09.21.2011 at 5:45 pm | Clay Dillow

Posted on 09/22/2011 9:05:58 AM PDT by fight_truth_decay

Molten aluminum mixing with water could have ultimately brought the towers down.

More than ten years after the fact, a scientists based at the Norwegian research institute SINTEF is proposing that a well-documented chemical reaction spelled the ultimate demise of the Twin Towers after the attacks of September 11, 2001. This isn’t another conspiracy theory, nor is it proven fact. But Christian Simensen theorizes that a mix of molten aluminum from the aircraft bodies mixed with water from the sprinkler systems could have catalyzed secondary blasts that brought the World Trade Center towers to the ground.

Simensen’s idea, presented at a materials technology conference in San Diego this week, is thus: after the planes impacted the WTC towers, tons of molten aluminum ran down into the floors below the impact sites, mingling with several hundred liters of water from the buildings’ fire sprinkler systems. This mix of aluminum and water is known to cause a chemical reaction that can not only boost temperatures but also put off combustible hydrogen in the process. Basically, it’s a recipe for a really hot explosion.

The official 9/11 report assigns blame for the collapsing towers to the steel structural beams at the building’s core. Basically, it says that these beams became super-heated by the jet fuel inferno created by the impacting aircraft, and that in turn caused the structures to fail.

But Simensen’s explanation is intriguing. It doesn’t dismiss the official report, but simply claims that it doesn’t tell the whole story. He says 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, which exacerbates the reaction).

(Excerpt) Read more at popsci.com ...


TOPICS: Extended News; News/Current Events; Technical
KEYWORDS: aluminumandwater; christiansimensen; science; sprinklersystems; wtc
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In the book: "Design and layout of fire sprinkler systems", it states under engineering responsibilites: .."it is not adviseable to install sprinkler systems when the application of water, or of flame and water, to the contents may may constitute a serious fire or life hazard as in the manufacture or storage of aluminum powder etc......confined to specially cutoff, unsprinkled rooms or buildings of fire resistent construction...any protection better than nothing theory, does not always make sense...it is not worth the trouble of designing a fire protection system that will not be effective, or badly compound problems"
NFPA 325M, Fire Hazard Properties of Flammable Liquids, Gases and Volatile Solids.

Smelting of alumina into metallic aluminum, a powdery substance is used in rocket fuel, fluorescent light bulbs, space shuttle launches.. etc. Its chemical properties make it effective in catalytic converters and explosives.

Molten aluminum can react explosively with water.
Applications in building and construction represent the largest single market of the aluminum industry. [Source]

A building is rarely constructed today without Aluminum..the physical properties of aluminium make it a perfect material for construction

Aluminum or aluminium is used in the jet engines and the hulls of hi-tech warships, and described as "resistant to heat and corrosion", plentiful and relatively inexpensive.


1 posted on 09/22/2011 9:06:08 AM PDT by fight_truth_decay
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To: fight_truth_decay

Aluminum isn’t a main ingredient of rocket fuel for no good reason


2 posted on 09/22/2011 9:10:44 AM PDT by fso301
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To: fight_truth_decay
This is more reasonable than the heating of the interior metal beams and would collaborate many of the first responders seeing the melted steel.
3 posted on 09/22/2011 9:10:46 AM PDT by Palter (Even liberals need jobs.)
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To: fight_truth_decay

Not buying it. The plumbing lines were severed on more than one floor allowing water to gush everywhere. Besides, has anyone bothered to tell him that at high temps aluminum burns.


4 posted on 09/22/2011 9:11:26 AM PDT by Blood of Tyrants (Islam is the religion of Satan and Mohammed was his minion.)
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To: fight_truth_decay

So did they find the combustion products of Al in the debris? Or was the Al in metallic form?

Viewing the tapes of the building collapse it didn’t appear
to me that there was any bright flare which would have been
present with an Al or Mg fire.


5 posted on 09/22/2011 9:12:18 AM PDT by RitchieAprile
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To: fight_truth_decay

Massive amounts of aluminum construction materials are also use for interior office partitions, dropped ceilings, cabinetry, furniture and more.


6 posted on 09/22/2011 9:13:01 AM PDT by Baynative (The penalty for not participating in politics is you will be governed by your inferiors.)
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To: Blood of Tyrants
"....tons of molten aluminum ran down into the floors below the impact sites, mingling with several hundred liters of water from the buildings’ fire sprinkler systems. This mix of aluminum and water is known to cause a chemical reaction that can not only boost temperatures but also put off combustible hydrogen in the process. "
7 posted on 09/22/2011 9:16:09 AM PDT by fight_truth_decay
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To: fight_truth_decay

I have a theory why they came down....PLANES WERE FLOWN THROUGH THEM.


8 posted on 09/22/2011 9:17:42 AM PDT by Blue Turtle
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To: fight_truth_decay

The only theory that is too absurd for the left to contemplate are the deliberate acts of nineteen well trained and financed homicidal muslim agents of global islamic terrorism, and the ensuing structual damage due to the impact of fully fueled passenger jets hitting the buildings dead-center. It’s just to silly to entertain.


9 posted on 09/22/2011 9:19:24 AM PDT by SpaceBar
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To: fight_truth_decay

25.3% Al and 74.7% Fe2O3 is also cool, and I wonder if they could had had "naturally occurring" thermite in the mix with Al-H2O.

10 posted on 09/22/2011 9:19:30 AM PDT by Pollster1 (Natural born citizen of the USA, with the birth certificate to prove it)
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To: fso301
...small quantity of rust...

...Fe, There you have it, found in all supernovas...

11 posted on 09/22/2011 9:21:48 AM PDT by gargoyle (...This looks like a good fight, deal me in...)
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To: fight_truth_decay
"....molten aluminum....mixed with water from the sprinkler systems could have catalyzed secondary blasts..."

Reminds me of the Sheffield DDS after struck by an Exocet in the Falklands War - can be some nasty stuff, that aluminum.

12 posted on 09/22/2011 9:22:29 AM PDT by Psalm 73 ("Gentlemen, you can't fight in here - this is the War Room".)
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To: fight_truth_decay

misleading

heat weakedn steel

stell that is designed to carry certain loads will not carry twice that load for a long time

the building fell because the material left after the impact was weakened by the fire and failed due to fatigue from the excessive load

doesn’t matter how short term the fatigue was, it matters how excessive the load was during the fatigue


13 posted on 09/22/2011 9:23:41 AM PDT by RaceBannon (Ron Paul is to the Constitution what Fred Phelps is to the Bible.)
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To: RaceBannon
'doesn’t matter how short term the fatigue was, it matters how excessive the load was during the fatigue'

Sure. But, the fatigue and weakening of the metal wouldn't be universal like on the buildings. The buildings had a uniform displacement of loss and strength, any displacement of strength would tend to prove a disaster, ie weak side of building collapses, it didn't.

14 posted on 09/22/2011 9:31:30 AM PDT by Palter (Even liberals need jobs.)
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To: fight_truth_decay

Makes complete sense especially since this guy witnessed being hit by explosions in the basement at 8:30am about 16 minutes before the first airplane hit.
http://www.youtube.com/watch?v=9c3gyprsa9Y


15 posted on 09/22/2011 9:39:48 AM PDT by Jack Hydrazine (It's the end of the world as we know it and I feel fine!)
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To: Blood of Tyrants

Like I said, it wasn’t the aluminum that was the problem. It was the thousands of gallons of jet fuel and the damage done by a 100 ton jet aircraft slamming into the building.


16 posted on 09/22/2011 9:52:06 AM PDT by Blood of Tyrants (Islam is the religion of Satan and Mohammed was his minion.)
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To: fight_truth_decay
Molten metal?


17 posted on 09/22/2011 9:54:28 AM PDT by FReepaholic (I'm a lumberjack and I'm ok.)
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To: fight_truth_decay

To be honest, they collapsed because islamic terrorists flew jumbo jets into them. Nuff said.


18 posted on 09/22/2011 9:57:38 AM PDT by Scythian
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To: fight_truth_decay

I thought the aluminum used in rocket fuel was in the form of powder (or filings) to greatly increase the surface area. It is not in a puddle of molten aluminum.

Has anyone found where a puddle of molten aluminum acts this way?

BTW, magnesium filings are more spectacular when they go up.


19 posted on 09/22/2011 10:03:08 AM PDT by jim_trent
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To: Pollster1

Look at your own stated ratio of 25%AL to 75%Fe.
Powdered metals are highly reactive but you have to work to get the ratios and ignition correct. Water dumped on molten AL or FE or ZN or Pb turns to steam VIOLENTLY hence “explosions” of trapped water. There are plenty of items in the building/plane combo that create explosions of all sorts but these are kinda trivial compared to thousands of gallons of wind-fed JP4 weakening steel past the yield point.


20 posted on 09/22/2011 10:03:20 AM PDT by bossmechanic (If all else fails, hit it with a hammer)
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