Recycled road-making material (IMAGE) RMIT University Caption A sample of the recycled road-making material, which blends shredded single-use face masks with processed building rubble. Credit RMIT University Usage Restrictions Credit RMIT University 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.