Monday, July 28, 2014

Time-Lapse of Ground Zero September 11 to today.

"The calculations are based on historical and comparable values," says Alexander Stolz at the Fraunhofer Institute.

BREATH . To design the manufacturing formula of this concrete, scientific used a shock tube to simulate detonations equivalent of 100-2500 kg of TNT on buildings between 35 and 50 meters.

http://droidartists.jimdo.com/2014/07/28/stimulate-rather-than-fracture/
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In this tube, the air is compressed to a pressure of 30 bar and then suddenly released to the sample rate. New concrete has proven effective in tests compared to other materials. According to its designers, it will minimize the impact of explosions but also earthquakes absorbing the shock waves.

Time-Lapse of Ground Zero September 11 to today.

This concrete has been used to build the tower of One World Trade Center, one of two buildings that replace the felled towers Sept. 11, 2001, which rises to 541.3 meters.

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