Packed, Micron-Scale Calcium Silicate Spheres (image) Rice University Share Print E-Mail Caption Packed, micron-scale calcium silicate spheres developed at Rice University are a promising material that could lead to stronger and more environmentally friendly concrete. Credit Multiscale Materials Laboratory/Rice University Usage Restrictions For news reporting purposes only. Share Print E-Mail 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.