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Use characteristics of low cement castables
  • Time:Jul 19, 2023
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Low Cement Castable (Low Cement Castable) is a high-performance refractory material that has a lower cement content than traditional high-alumina castables. The following are the main usage characteristics of low cement castables:

1. Excellent refractory performance: low-cement castables are composed of high-quality refractory aggregates, powdery materials and a small amount of cement matrix. It has excellent high temperature resistance and can withstand operating temperatures as high as 1500°C.

2. Lower cement content: Compared with traditional castables, the cement content of low cement castables is significantly reduced. This means less water is required during preparation, reducing the risk of shrinkage and cracking during drying and curing, and improving the overall compactness and strength of the refractory.

3. High strength and durability: low cement castable has high compressive strength, flexural strength and wear resistance. It has stable mechanical properties at high temperatures, is not prone to deformation and fracture, and can maintain the integrity and stability of the structure for a long time.

4. Good chemical corrosion resistance: low-cement castables have good resistance to acids, alkalis and other chemicals. It can remain stable in chemically corrosive environments, free from corrosion and dissolution, extending the service life of equipment.

5. Construction flexibility: low-cement castables have low fluidity and can be constructed by vibrating or compacting. It can adapt to the pouring of complex shapes and structures, fill irregular voids, and be closely combined with existing refractory materials.

6. Fast curing and drying time: Compared with high cement content castables, low cement castables have faster curing and drying times. This makes the construction process more efficient and enables quick return of equipment to service.

Castables

It should be noted that the low-cement castables need to strictly follow the ratio and construction requirements provided by the manufacturer during the construction process. The selection of the appropriate low cement castable type and formula is determined according to the specific needs and application environment.

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