Table 1 Physical and chemical properties of coal gangue, aeolian sand and fly ash.

From: Influence of coal gangue-aeolian sand aggregate gradation on rheological properties and pipeline transportation characteristics of filling slurry

Aggregate

SiO2

Al2O3

Fe2O3

CaO

MgO

others

Bulk density t/m3

Gangue

53.21

18.95

4.32

2.36

1.42

19.74

1.48

Aeolian sand

76.73

3.77

3.01

2.47

0.48

13.54

1.32

Fly ash

53.94

30.91

2.38

6.53

0.92

4.90

0.75

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