SCIENCE - Environmentally friendly cement is stronger than ordinary cement

Cement made with waste ash from sugar production is stronger than ordinary cement. The research shows that the ash helps to bind water in the cement so that it is stronger, can withstand higher pressure and crumbles less. At the same time, energy is saved and pollution from cement production is reduced ...

http://www.sciencedaily.com/releases/2013/09/130916111002.ht