Fly ash and bottom ash are generated in the sugarcane industry. Generally, fly ash results in high loss on ignition and reactive silica [16]. Furthermore, bottom ash demonstrates low loss on ignition and large amounts of quartz in its composition [17], thus presenting low reactivity. In this research, bottom ash from Brazilian sugarcane industry was used. The chemical composition of SBAS used in this study and ashes used by other researchers is shown in Table 1