You go Spartans - Michigan State University is using more than 6,000 tons of recycled concrete for a variety of on-campus construction projects. By using the remnants of the old concrete, the university is not only saving thousands of dollars in construction costs, but also helping save the environment, as much of that concrete could have eventually found its way to a landfill. The old concrete was put through a grinder, much like a wood chipper, any metal in the concrete was removed through the use of a magnetic conveyer belt, and what was left was ready for use.
Source: MSU news release for February 24. Read more.
National Ready Mixed Concrete Association