Dr Gunasekara with sample (IMAGE) RMIT University Caption Dr Chamila Gunasekara holds a sample of the low-carbon concrete. Credit Michael Quin, RMIT University. Usage Restrictions Credit License Original 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.