Properties

Number of samples

Maximum value

Minimum value

Average value

Chemical properties

Ignition loss

(wt%)

13

32.3

5.9

18.4

SiO₂

13

53.3

21.6

34.5

Al₂O₃

13

25.7

8.3

17.4

Fe₂O₃

13

4.8

0.4

2.1

CaO

13

41.3

6.3

18.7

Physical properties

True specific gravity

12

2.61

2.26

2.48

Specific surface area (cm²/g)

Blaine value

10

9140

4210

6260