The results of pozzolanic activity index (PAI) are given in Table
1. The PAI of the SCBA produced by burning at 400, 500 and 600 C
increases with increasing calcination temperatures due to significant
removal of carbon. With the formation of crystalline compounds,
the values of PAI are slightly decreased. These results
show that the temperature of 600 C is the most appropriated to
produce pozzolan from SCBA. At this temperature it is possible to
generate an ash predominantly amorphous, with PAI of 77% and
LOI of 5.7%.