The compressive strength of bagasse ash-blended concrete specimens
is shown in Table 4. Comparison of the compressive strength
data for 3, 7, and 28 days of curing times shows that the compressive
strength increases (with increasing bagasse ash up to 10% and
then at 20%) and attains equivalent values to those of the control
concrete specimens. Three days compressive-strength value of 20%
bagasse ash concrete is equivalent to 7 days compressive-strength
value of the control specimen, whereas the compressive strength at
28 days is higher. The relative increase in compressive strength
of 20% bagasse ash-blended concretes compared with control