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Anti-skin Castable Refractory for Preheater
( Castable Refractory for the preheat equipment of Cement Kiln)
Brand Properties |
ZT-50S |
ZT-55S |
ZT-60S |
Chemical Composition (%) |
Al 2 O 3 |
20-30 |
20-30 |
20-30 |
SiO 2 |
14-23 |
13-25 |
13-25 |
SiC |
45-55 |
45-60 |
50-65 |
Max service temperature (°C) |
1200Min. |
1200 |
1200 |
Bulk density after burnt at 1200x3h°C (g/cm 3 ) |
≥2.3 |
≥2.4 |
≥2.4 |
Linear changing after burnt at 1200°C×3h (%) |
-0.5~ 0.5 |
0.5~ -0.4 |
0.5~ -0.4 |
Compressive/Bending Strength (MPa) |
110°C×3h |
≥70/≥8 |
≥70/≥8 |
≥70/≥8 |
1200°C×3h |
≥100/≥12 |
≥100/≥15 |
≥110/≥15 |
Max grain size of aggregate ( mm) |
5-6 |
5-6 |
5-6 |
Water content for construction by weight ( % ) |
5-6 |
5-6 |
5-6 |
Usage |
Preheater |
Test standard |
YB/T5202-2003 |
Packing |
25kg plastic bag |
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