How Minimills Turned Scrap into Sustainable Building Materials
Most lists of sustainable building materials include recycled steel, yet few explain how it got there. The answer starts with rebar and the small mills that big steelmakers once ignored. Here is how they disrupted the industry and what that teaches green construction today. What Did Minimills Change About Steelmaking? Minimills changed the raw material. Integrated mills start with iron ore and coke in blast furnaces. Minimills melt scrap, such as old automobiles and demolished beams, in electric arc furnaces...
