Al 2 O 3 | 17-23% |
SiO 2 | >70% |
Fe 2 O 3 | <1.0% |
CaO | <1.5% |
MgO | <0.5% |
K2O + Na 2 O | <3.5% |
Other | <1% |
Size
(mm) |
Specific surface area
(m2/m3) |
Void fraction
(%) |
Numbers per (m 3 ) |
Bulk density (kg/m 3 ) |
Packing factor
(l/ft) |
25 | 253 | 73 | 53000 | 600 | 340 |
38 | 164 | 75 | 13000 | 580 | 190 |
50 | 115 | 77.4 | 6300 | 580 | 166 |
76 | 92 | 75.5 | 1900 | 530 | 127 |