Recycled Steel Smartbeams by SMI
by Justin Thomas, Virginia 
on 08.31.05
SMI says steel is one of the most recycled materials on earth. About 88% of the steel taken from commercial construction demolition sites was recycled and made into new steel products in 1998. SMI has a great example of such a product: their Smartbeam is made out of 100% recycled steel.
It's an exclusive cellular beam, which comes in a hexagonal design. They start with a standard I-beam, which is cut in half longitudinally. The two halves are separated, staggered and welded together to form a SmartBeam® that weighs the same but is 50% stronger and deeper than the original beam.
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