Finding substitutes for portland cement has recently emerged as one of the most widely investigated means for raising the sustainability and efficiency of concrete production.

Researchers have tried using everything from copper slag to incinerated sludge as a replacement ingredient. Instead of replacing portland cement, however, researchers from James Cook University have teamed up with Queensland’s Fibercon to create a process for converting industrial plastic waste into an effective substitute for the steel matrices used in reinforced concrete. “We’ve…