19.01.2007   15:50   +Feedback

Hätte Asbest-Feuerschutz die Twin towers gerettet?

Auszug aus einem Artikel von Steven Milloy auf der FOX-Website:
…A subsequent fire analysis report from an engineering firm noted that the fire, “while reported in the press to have been very hot, did not damage a single primary, fireproofed element.”
Berlau’s report of the post-Sept. 11 fireproofing testing by NIST underscores the chilling possibility that the Sept. 11 WTC building collapses may have been delayed if not preventable had asbestos fireproofing been used.
Despite the huge fireballs caused by the two planes crashing into the WTC towers each with 10,000 gallons of jet fuel, the fireballs didn’t explode or create a shock wave that would have resulted in structural damage, according to a follow-up report by the Federal Emergency Management Administration. NIST’s report says that the steel didn’t melt as the temperature in the WTC towers never rose above 1,800 degrees Fahrenheit (steel melts at 2,750 degrees). Steel will, however, start to bend and buckle at temperatures as low as 600 degrees if the fireproofing is inadequate.
The NIST report concludes that, “The WTC towers would likely have not collapsed under the combined effects of the aircraft impact damage and the extensive, multi-floor fires that were encountered on September 11, 2001, if the thermal insulation had not been widely dislodged.”
So how do we know that asbestos fireproofing likely would have performed better than the non-asbestos fireproofing?
Post-Sept. 11 testing by NIST indicates that the original testing of the non-asbestos fireproofing was wildly inaccurate. In simulations by NIST, the non-asbestos fireproofing was far inferior to asbestos in terms of melting points and ability to keep fire from spreading.
“Some of the non-asbestos fireproofing probably just burned off,” writes Berlau…


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