Production Waste of Granite Rubble Utilisation in Ultra High
Keywords:granite rubble waste, Ultra High Performance Concrete, UHPC
Production waste of granite rubble is a serious problem for many manufacturers. Year after year quantity of granite waste is growing, but manufacturers are still unlucky to find new ways where properly utilize this waste. The main problem is, that waste of granite has high quantity of impurities and its specific surface is greater, than cement, all particles have angular surface and impurities, so all mixtures containing waste of granite will require more quantity of water for similar viscosity mixture, will require more cement to meet required properties and probably will have worse granular curve of concrete mixture. One area where waste of granite could be utilized is in ultra high performance concrete (UHPC). UHPC could be a good alternative for utilization of waste of granite rubble. In this article researched, how waste of granite rubble is affecting main properties of UHPC: viscosity, density and compressive strength. Waste of granite rubble can be used as micro filler or could replace some quantity of cement. If research confirms mentioned assumption, waste of granite rubble could not only be utilized in the future but also price of UHPC could be lowered.