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Shijiazhuang Mining Imp & Exp Trade Co., Ltd.
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asbestos
1. USE OF ASBESTOS
Asbestos has feature of high fib re strength and rapid hydrophobic speed ,so it is the ideal material of asbestos-cement products .besides ,asbestos is also used widely in heat preservation products , friction brakes ,reinforcing material of plastics, sealing gaskets ,building material of asphalt pavements ect.
List of Loss on ignition | ||||||
Temperature(°C) | 300 | 400 | 500 | 600 | 700 | 800 |
LOI (%) | 1.34 | 3.00 | 11.44 | 13.01 | 13.31 | 13.55 |
Chemical Composition | ||||||
Element | SiO2 | MgO | H2O | Al2O3 | FeO | NiO |
Content (%) | 41.36 | 40.14 | 13.22 | 0.65 | 2.25 | 0.27 |
Specification of Asbestos | ||||||||
Category | +12.5MM(%) | +7.5MM(%) | +1.4MM(%) | -1.4MM(%) | Dust and Sand(%) | Sand Content(%) | Moisture(%) | Grade |
3
| (≥) | (≤) |
| |||||
| 40 | 44 | 16 | 6.5 | 0.5 |
| 3-40 | |
4 |
| 30 | 53 | 17 | 7.0 | 0.5 |
| 4-30 |
| 20 | 62 | 18 | 7.5 | 0.5 |
| 4-20 | |
| 10 | 70 | 20 | 8.0 | 0.5 |
| 4-10 | |
5 |
|
| 70 | 30 | 11.0 | 0.5 |
| 5-70 |
|
| 60 | 40 | 12.0 | 0.7 |
| 5-60 | |
|
| 50 | 50 | 19.0 | 0.5 |
| 5-50 | |
6 |
|
| 40 | 60 | 21.0 | 0.5 |
| 6-40 |
Special |
|
| 50 | 50 | 17.5 | 0.5 | 0.7-1.5 | For braking specially |
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