RUBBER 2 (IMAGE) Rice University Caption Rice University scientists have optimized a process to turn rubber from discarded tires into turbostratic flash graphene. The graphene is highly soluble, which makes it ideal for composite materials, including cement in more environmentally friendly concrete. Credit Tour Research Group/Rice University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.