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Cement Grade Blended Granulate |
Blast furnace slag is the non-metallic product consisting essentially of silicates and aluminosilicates of calcium and other bases, that are developed in a molten condition simultaneously with iron in a blast furnace.
Granulated blast furnace (GBF) slag is a glassy, granular material. Produced when molten slag is passed through high volume water sprays, breaking the slag stream into small droplets and cooling them so quickly that crystallisation is suppressed.
Cement Grade Blended Granulate is a coarse sand-like material with a porous, amorphous structure and ranging from white to golden brown in colour.
In the manufacturing process blended granulate is dried and either interground with Portland cement clinker or separately ground and post blended with Portland cement at the cement plant or concrete batching plant.
| SIEVE |
% PASSING |
| 6.7mm |
100 |
| 4.75mm |
97 - 100 |
| 2.36mm |
80 - 100 |
| 1.18mm |
40 - 80
|
| 600um |
10 - 40
|
| 75um |
0 - 5
|
| 45um |
0 - 2 |
PDS-GBF056 : Rev 1 : 06/07/08
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Cement Grade Blended Granulate is composed of mostly amorphous phases, but for ease of reporting oxide equivalents are used and fall within the relatively narrow limits given below:
| CONSTITUENT |
SYMBOL |
% |
| Iron Oxide |
FeO |
<1.3 |
| Calcium Oxide |
CaO |
38 - 43 |
| Silicon Dioxide |
SiO2 |
32 - 37 |
| Aluminium Oxide |
Al2O3 |
13 - 16 |
| Magnesium Oxide |
MgO |
5 - 8 |
| Titanium Dioxide |
TiO2 |
<1.5 |
| Manganese Oxide |
MnO |
<1.0 |
| Sulphur |
S |
<1.0 |
| Sodium Oxide |
Na2O |
<0.5 |
| Lime/Silica Ratio |
CaO
SiO2 |
1.1 - 1.3 |
Hydraulic Index
|
CaO+MgO+Al2O3
SiO2 |
1.7 - 1.9 |
| Chloride Ion |
Cl |
<250ppm |
| Bulk Density (Loose)
|
0.85 - 1.15 t/m3
|
| Glass Content
|
>85%
|
Moisture Content
|
5 - 15%
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Marketing Department
Australian Steel Mill Services Pty
21 Processing Area
Springhill Road
PORT KEMBLA NSW 2505
Telephone: 02 4255 1125
Facsimile: 02 4276 2369 |
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