Ferrock is a cementitious binder that can be an alternative to Portland cement in some applications. Ferrock is superior in flexural strength, toughness, and crack resistance. Unlike Portland cement it will not break down at high temperatures (>600 C). It is also greener because it recycles solid wastes (steel dust and fly ash) and captures CO2 during the curing process (10% by weight). Ferrock can also be foamed to make an inorganic insulation and this creates the potential to make a fireproof wall system for exterior cladding or structural insulated panels for residential construction. The patent on Ferrock is held by the University of Arizona (Dr. Stone was working there when he made the discovery) and has been exclusively licensed to Iron Shell Material Technologies. Extensive scientific research has been done on Ferrock and field trials of prototype products and demonstration structures have been done. 

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