OSU researchers are 3D printing more sustainable concrete

A vast amount of our built environment is made of concrete. It’s largely affordable, durable and easy to make. It’s also responsible, by some estimates, for roughly 8% of global CO2 emissions.   But the U.S. is also facing a significant housing demand shortage, and since concrete is one of the primary building materials for houses and apartments, scientists are working to make it more sustainable to produce.   Late last year, a research lab at Oregon State University made a breakthrough when they created a more environmentally friendly concrete derived from soil instead of cement. Besides emitting less CO2 during production, it’s strong, dries fast and it can be 3D printed more rapidly.   Devin Roach is an assistant professor of manufacturing and mechanical engineering at OSU. He joins us to share more about how the concrete was made, why it’s useful and the possibilities for commercial use.