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high strength alkali resistant brick for cement rotary kiln
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|
Items |
RKH |
|
|
Chemical composition(%)
|
Al2O3 |
25—40 |
|
SiO2 |
65-70 |
|
|
Fe2O3 |
≤2.0 |
|
|
Refractoriness(°C) |
≥1650 |
|
|
Bulk density(g/cm3) |
≥2.20 |
|
|
Apparent porosity(%) |
≤20 |
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Cold crushing strength(MPa) |
≥60 |
|
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Refractoriness under load(0.2MPa T0.6,°C) |
≥1300 |
|
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Thermal Conductivity(W/m.K) |
≤1.28 |
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Thermal shock resistance,time(1100°C,water-cooling) |
≥20 |
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