The 60 low cement castable achieves a significantly lower CaO content compared with conventional castables through strict control of cement addition. Under high-temperature conditions, this reduces the formation of low-melting-point calcium aluminate phases, enhancing refractoriness, high-temperature structural stability, and long-term performance of the furnace lining.
This castable features a multi-modal particle size distribution, which ensures high density while maintaining good flowability and vibratory compaction. During service, it exhibits excellent sintering behavior: as the temperature rises, the internal structure further densifies and the high-temperature strength increases rather than decreases. These properties make it particularly suitable for industrial kilns operating continuously for extended periods.
|
Serial Number |
Indicator Name |
Numerical Values |
|
|
1 |
Bulk Density |
110℃×24h |
2.3±0.05t/m³ |
|
2 |
Chemical Composition |
Al2O3 |
≥60% |
|
3 |
Linear Change |
1350℃×3h |
-0.5～+0.5% |
|
4 |
Compressive Strength ≥ |
110℃×24h |
≥30Mpa |
|
1350℃×3h |
≥50Mpa |
||
|
5 |
Flexural Strength ≥ |
110℃×24h |
≥5Mpa |
|
1350℃×3h |
≥6Mpa |
||
Key Features of 60 Low Cement Castable:
●Low cement bonding system: Ensures a denser and more uniform structure
●60% alumina content: Balances high-temperature performance with cost-effectiveness
●High mechanical strength: Maintains strength at both room and elevated temperatures
●Excellent thermal shock resistance: Tolerates rapid temperature changes without cracking
●Stable construction performance: Provides consistent workability and strong adaptability across various applications
Typical Applications of 60 Low Cement Castable:
Power industry: boiler furnaces, air ducts, and cyclone separators
Cement industry: preheaters, flues, and cones
Metallurgical industry: heating furnaces, heat treatment furnaces, and hot air ducts
Chemical and petrochemical industry: reactors, heating furnaces, and equipment linings
Other industrial furnaces and kilns: working linings and spare linings in medium- to high-temperature zones
●Over 30 years of experience in R&D and engineering of monolithic refractories
●Multiple low cement castable systems available, customizable to specific application requirements
●Automated production lines ensure consistent and stable product quality
●Comprehensive technical support throughout the entire process, including material selection, construction guidance, and furnace drying procedures
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