Excellent Grit
Excellent grit is an aluminium silicate and is free of free silica and iron particles.
|
CHEMICAL ANALYSIS
|
AL²O³ 23 - 32 % SiO² 42 - 58 % Fe²O³ 3 - 15 % CaO 2 - 8,5 % K²O 0,5 - 4,6 %
|
|
|
SHAPE |
Angular
|
|
|
COLOUR |
Black / Brown
|
|
|
HARDNESS |
6 - 7 Mohs
|
|
|
BULK WEIGHT |
1,05 - 1,4 kg/dm³
|
|
|
SPECIFIC WEIGHT |
2,4 - 2,6 kg/dm³
|
|
|
GRAIN SIZE |
Extra-fine 0,2 - 0,5 mm Fine 0,2 - 1,0 mm Medium-fine 0,2 - 1,4 mm Medium 0,2 - 2,0 mm Coarse 1,0 - 2,0 mm
|
|
|
PACKING |
- loose in bulk - silo with about 20 tonnes - in 25 kg paper bags on pallets of 1000 kg each, covered with a shrink foil. - in big bags, 1000 kg each. |
|
|
APPLICATION |
Excellent grit is mostly used in the field as; - shipbuilding - oil terminals - offshore - concrete blasting |
|