Thread: NEW YORK | 111 W 57th St | 1,428 FT | 85 FLOORS
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Old Posted Sep 11, 2013, 2:33 AM
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scalziand scalziand is offline
Mortaaaaaaaaar!
  
Join Date: Aug 2007
Location: Naugatuck, CT/Worcester,MA
Posts: 3,506
I would say 14,000 psi minimum, maybe higher.

Here's an application of 19,000 psi 2 decades ago.
http://www.silicafume.org/pdf/reprints-hscjumps.pdf
Last edited by scalziand; Sep 11, 2013 at 2:51 AM.