Table 7 Ca/Si atomic ratio from EDS analysis of control and mixes containing different percentages of BA alone and BA with SF.

From: Mechanical and microstructural performance of concrete containing high-volume of bagasse ash and silica fume

Mix ID

Ca/Si atomic ratio

Overall

C–S–H phase

C–H phase

CC

1.93

1.73

3.30

BA10

1.74

1.54

3.06

BA20

1.35

1.34

2.73

BA30

1.68

1.46

2.93

BA25SF5

1.06

1.03

2.54

BA33SF7

1.00

0.91

2.41

BA40SF10

1.23

1.18

2.65