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Startup enables 100-year bridges with corrosion-resistant steel
Allium Engineering, founded by MIT alumni Sam McAlpine and Steven Jepeal, developed a process for improving steel rebar to triple the lifetime of bridges and other infrastructure.
Now Allium Engineering, founded by two MIT PhDs, is tripling the lifetime of bridges and other structures with a new technology that uses a stainless steel cladding to make rebar resilient to corrosion. Steelmaking traditionally begins by putting huge pieces of precursor steel through machines called rollers at extremely high temperatures to stretch out the material. Last year, Allium’s factory in Billerica, Massachusetts, began producing its first commercial cladding material, helping to manufacture about 100 tons of the company’s stainless steel-clad rebar in collaboration with a partner steel mill.
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