CFBC Bottom Ash as Fine Active Filler for High Performance Composite Building Materials

Abstract

This article presents the results of the bottom ash from Circulating fluidized Bed Combustion (CFBC). Ashes were modified by grinding in their physical parameters. For this treatment was used the tumbling ball mill at CTU in Prague. In this case were used bottom ashes from Ledvice power plant. Samples of bottom ash were milled in specific amounts and grinding times. The modified samples were tested for the effect of amount of bottom ash in the mill and grinding time on its granulometry. For this testing was used laser diffraction method with particle size analyzer. Milling seems to be great way to get material with better physical and mechanical properties. The reason for this experiment was to better understand behaviour of bottom ash during grinding and made fine filler with specific features for composite building material with high strength.