3D concrete printing is process where a computer instructs a machine where to squeeze out layer, upon layer of concrete until a framed building is constructed. At the University of Michigan in Ann Arbor, researchers have developed an improved design that can make the concrete structure stronger and allow for more creative designs. WEMU's Cathy Shafran talks with one of those researchers, Mania Meibodi.
Divided Michigan lawmakers have voted to allow for the use of coal ash and other industrial byproducts in cement and other products. The main bill…