Engineer discusses steel from WTC

Dr. Abolhassan Astaneh-Asl talks about his analysis of the twisted remains of the WTC. From the Learning Zone documentary "World Trade Center: Anatomy of the Collapse."

Category:

Science & Technology

Tags:

• 9/11
• WTC
• collapse

[ortafunk]

There Is No way In hell the jet Impact could knock off all the fire proofing, scrapped It off yes but Not knocked It off. More likely an explosion done It.

[proudfootz]

At 0:48 - 'most likely' came from WTC2?

Apparently this man is making it up as he goes...

[MrAwsome514]

@demigodlike All of the reports state the steel was heated to 250 degrees (C). Even most conspiracy believers accept that this is accurate. What many people do not understand is that at 250 degrees (C) steel loses 20% of it's strength.

Hypothetically is you had a 100 ton building built to support 110 tons and it lost 20% of it's strength what would happen? It would collapse because it can now only support 88 tons.

[forugh3]

@dugall1 so what sort of expertise do you have in your experience to make such suggestions?

[punxsutawneybarney]

Respond to this video... Immediately after 9/11 the conventional wisdom was that the jet fuel had melted the steel. NBC, CNN, NOVA, Fox News, and BBC all said so, and quoted a variety of "experts" on the subject. Of course this was nonsense. Jet fuel doesn't burn hot enough to melt steel. For more information see my video: The 9/11 "Deep Mystery" and the Crazy Engineers

[dugall1]

But it was not melted. The demonstrated piece still looks intact even though the protecting cover is missing.

Anyway this piece either was:

1. blown out directly by the crash -> then it is not appropriate for discussion about effects of fire inside the WTC.

2. a part of structure inside WTC where damage and fire were at highest rate -> then one should wonder why it is not melted, as officially stated, and still intact

3. any piece from anywhere -> then it does not explain anything

[MrChizzy2k]

AND YOU AMERICANts THINK YOU LIVE IN "THE LAND OF THE FREE???"

[guesswhotoo6]

Evidence of CD, but let's redirect to other BS.....

High speed slurry of debris and gasses from explosive charges scrubbed surface of beams, removed fire-proofing, left particular patterns of concrete remaining from floors, left blast pattern in rust proofing paint, left deformed shapes in steel, etc. Evidence evidence everywhere, some in microscopic details like micro cratering on steel surfaces. 

[JJTechnologies]

I seriously don't know what it proves? Can't find any plausible theory except for shape charges inside the building. What a mess.....

[MrKoenig1985]

Fire proof material can be also blown away by schock waves, created by explosive charges.