Introduction
In the industrial and construction sectors, choosing the right type of cement plays a key role in ensuring the durability and reliability of structures. Two popular choices are. alumina cement (AC) и High alumina cement (HAC) - have different properties that determine their application.
Company Kerui Refractory offers both types of cement with certificates GOSTguaranteeing high quality and compliance with standards. In this article we will compare them Chemical composition, heat resistance and costto help you make an informed choice.
1. chemical composition: what is the difference?
The main difference between alumina cement and high alumina cement is the content of Al₂O₃ (aluminum oxide).
| Parameter | Alumina cement (GC) | High alumina cement (HAC) |
|---|---|---|
| Al₂O₃ (%) | 35-45% | 50-80% |
| CaO (%) | 35-45% | 15-30% |
| SiO₂ (%) | 5-10% | 5-15% |
| Fe₂O₃ (%) | 1-3% | 1-3% |
🔹 Alumina cement contains 35-45% Al₂O₃This provides rapid strength and sulfate resistance.
🔹 High alumina cement contains 50-80% Al₂O₃This makes it more heat resistant and chemically inert.
Conclusion: The higher the Al₂O₃ content, the better the refractory properties, but also the higher the cost.
2. heat resistance: which cement can withstand more?
Refractory properties are a key factor in the selection of cement for high temperature applications.
| Characterization | Alumina cement (GC) | High alumina cement (HAC) |
|---|---|---|
| Max. temperature | Before 1600°C | Before 1800°C |
| Curing rate | Fast (1-3 days) | Slow (3-7 days) |
| Application | Repair work, foundations | Furnaces, boilers, metallurgy |
🔹 HC suitable for moderately high temperatures (up to 1600°C), e.g. in construction and renovation.
🔹 VGC used in extreme conditions (up to 1800°C), such as furnace linings and industrial boilers.
Kerui Refractory produces both types of cement with high temperature resistanceThis is an excellent way to ensure a long service life of the structures.
3. Where are HCs and HHCs used?
Alumina cement (GC)
✅ Ремонт бетонных конструкций
✅ Быстротвердеющие растворы
✅ Строительство в агрессивных средах
High alumina cement (HAC)
✅ Футеровка печей и котлов
✅ Металлургическая промышленность
✅ Производство огнеупорных бетонов
Kerui Refractory supplies both types of cement with GOST certificatesThe company guarantees reliability and compliance with standards.
Conclusion: which cement to choose?
| Criterion | Alumina cement (GC) | High alumina cement (HAC) |
|---|---|---|
| Al₂O₃ content | 35-45% | 50-80% |
| Heat resistance | Up to 1600°C | Up to 1800°C |
| Cost | Low | High |
| Application | Construction, repair | Industrial furnaces, metallurgy |
🔸 Choose a GCif you need quick-setting and affordable material.
🔸 Choose VGCif required maximum heat resistance for extreme conditions.
Company Kerui Refractory offers both types of cement with quality assurance. Contact our experts to find the best option for your project!
📞 Contact us for consultation and ordering of certified materials.