Al2O3 + SiO2
|
Al2O3
|
SiO2
|
Fe2O3
|
CaO
|
MgO
|
K2O + Na2O
|
Other
|
> 92%
|
23-26%
|
68-72%
|
0.4-0.8%
|
0.6-0.9%
|
0.6-1.2%
|
< 3.5%
|
< 1%
|
Normal size
(inch – mm)
|
Packing Density
|
|
Specific Surface
|
|
Void Fraction, %
|
Compressive Strength per ball, kg
|
||
|
kg/m3
|
lb/ft3
|
m2/m3
|
ft2/ft3
|
44
|
|
||
1/8" – 3mm
|
1400
|
88
|
720
|
220
|
44
|
30
|
||
1/4" – 6mm
|
1400
|
88
|
520
|
158
|
44
|
50
|
||
3/8" – 9mm
|
1400
|
88
|
360
|
110
|
44
|
120
|
||
1/2" – 13mm
|
1350
|
84
|
275
|
84
|
45
|
180
|
||
3/4" – 19mm
|
1350
|
84
|
190
|
58
|
45
|
300
|
||
1" – 25mm
|
1350
|
84
|
144
|
44
|
45
|
400
|
||
1¼" – 32mm
|
1350
|
84
|
120
|
37
|
45
|
520
|
||
1½" – 38mm
|
1350
|
84
|
100
|
30
|
45
|
600
|
||
2" – 50mm
|
1350
|
84
|
75
|
23
|
45
|
720
|