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Clay brick for lime kiln
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Items |
Index |
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N-1 |
N-2a |
N-2b |
N-3a |
N-3b |
N-4 |
N-5 |
N-6 |
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Refractoriness, °C ≥ |
1750 |
1730 |
1730 |
1710 |
1710 |
1690 |
1670 |
1580 |
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Refractoriness Under Load, °C, [0.2MPa×0.6%] ≥ |
1400 |
1350 |
-- |
1320 |
-- |
1300 |
-- |
-- |
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Linear Change on Rehearting, % |
1400°C×2h |
+0.1 -0.4 |
+0.1 -0.5 |
+0.2 -0.5 |
-- |
-- |
-- |
-- |
-- |
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1350°C×2h |
-- |
-- |
-- |
+0.2 -0.5 |
+0.2 -0.5 |
+0.2 -0.5 |
+0.2 -0.5 |
-- |
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Apparent Porosity, % ≤ |
22 |
26 |
24 |
24 |
26 |
24 |
26 |
28 |
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Cold Crushing Strength, MPa ≥ |
30.0 |
20.0 |
25.0 |
20.0 |
15.0 |
20.0 |
15.0 |
15.0 |
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