High Temperature Fire Cement
Kerui high temperature fire cement can maintain performance in high temperature environments for a long time. It does not lose strength and hardness due to continued high temperatures. Moreover, high temperature contact cement is mainly mixed with alumina, silicate and other materials. Therefore, it has high strength, high wear resistance, high fire resistance and chemical resistance.
- Al2O3(≥): 50% – 81%
- Flexural Strength: 6.0Mpa – 12.5Mpa
- Compressive Strength: 30Mpa – 82Mpa
3 Classification of High Temperature Fire Cement
Features: CA50 high temperature resistant cement has a low refractory temperature, usually around 1300°C. It has good fire resistance and chemical resistance. Therefore, you can use it stably for a long time at medium and low temperatures.
Ingredients: the main ingredients include Portland cement, alumina in cement, etc. Moreover, it usually also contains a certain amount of refractory materials such as quartz sand and refractory alumina.
Features: CA70 cement high temperature has a relatively high refractory temperature, usually around 1550°C. It has high mechanical strength, good thermal shock resistance and slag resistance. Therefore, it can withstand thermal stress at higher temperatures.
Ingredients: the main ingredient is high alumina cement. We usually mix cement temperature resistance with a certain proportion of quartz sand, refractory alumina and other refractory materials.
Features: the refractory temperature of CA80 extreme temperature cement is generally above 1800°C. It has excellent corrosion resistance, thermal shock resistance and thermal expansion resistance. So, you can use it stably for a long time at extremely high temperatures.
Ingredients: the main ingredient is high alumina cement. Usually used in conjunction with high-purity refractory alumina, quartz sand, etc. Contact Kerui and we will help you choose the best solution.
Parameter of Kerui High Temperature Fire Cement
| Item/Grade | CA50 | CA70 | CA80 | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| A600 | A700 | A900 | CA70 | CA70W | CA70S | CA71 | CA80 | CA80S | |||
| Chemical Composition | ω (SiO2) ≤/% | 7.8 | 7.5 | 5.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | |
| ω (Al2O3)/% | 50.0 | 51.0 | 53.5 | 68.5-70.5 | 68.5-70.5 | 68.5-70.5 | 69.5-71.5 | 78.0-81.0 | 78.0-81.0 | ||
| ω (Fe2O3) ≤/% | 2.5 | 2.5 | 2.5 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | ||
| ω (CaO)/% | / | / | / | 28.5-30.5 | 28.5-30.5 | 28.5-30.5 | 27.5-29.5 | 17.5-20.5 | 17.5-20.5 | ||
| ω (MgO) ≤/% | / | / | / | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | ||
| ω (R2O) ≤/% | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | 0.4 | ||
| ω (S) ≤/% | 0.1 | 0.1 | 0.1 | / | / | / | / | / | / | ||
| ω (Cl) ≤/% | 0.1 | 0.1 | 0.1 | / | / | / | / | / | / | ||
| Fineness | d50/μm | / | / | / | 11-4 | 8-11 | 6-9 | 10-13 | 5-8 | 5-8 | |
| -45μm ≤/% | / | / | / | 8.0 | 5.0 | 5.0 | 8.0 | 5.0 | 5.0 | ||
| Setting Time | Initial Setting Time (min) | ≥45 | ≥60 | ≥90 | 120-180 | 30-90 | 180-240 | 150-210 | 30-90 | 90-150 | |
| Final Setting Time (min) | ≤6 | ≤6 | ≤6 | 150-240 | 90-180 | 240-330 | 210-300 | 90-180 | 270-360 | ||
| Strength (ISO) | Flexural Strength/Mpa | 24h | 6.0 | 6.5 | 8.0 | 7.5-10.0 | 8.0-10.5 | 8.0-10.5 | 8.5-11.0 | 5.0-7.5 | 5.0-7.5 |
| 72h | 7.0 | 7.5 | 10.0 | 10.0-12.0 | 10.5-12.5 | 10.5-12.5 | 11.0-12.5 | 6.0-8.5 | 6.0-8.5 | ||
| Compressive Strength/Mpa | 24h | 45 | 55 | 72 | 40-50 | 45-55 | 45-55 | 50-60 | 30-40 | 30-40 | |
| 72h | 55 | 65 | 82 | 45-55 | 50-60 | 50-60 | 55-65 | 40-50 | 40-50 | ||
| 325M ≤/% | 15 | 12 | 8 | / | / | / | / | / | / | ||
| Specific Surface Areas ≥/ (㎡/kg) | 300 | 320 | 350 | / | / | / | / | / | / | ||
Note: this table is formulated concerning Chinese refractory industry standards. Besides, if you have any further questions about fire stop cement, please follow us on Pinterest for more details.
Uses of High Temperature Fire Cement
We can use the high temp cement to prepare refractory linings, refractory bricks and plastic refractory castable for various high-temperature furnaces. Moreover, it has strong corrosion resistance, ensuring long-term stable operation of the equipment.
In steel production, we widely use the high performance fire resistant cement or heatproof cement in the lining of high temperature equipment and the preparation of refractory components. Such as steel-making furnaces, converters and electric furnaces.
Chemical equipment often needs to withstand harsh environments such as acid and alkali corrosion. Therefore, we can use high heat cement or fire proof cement as lining material or coating. This protects the equipment from corrosion and high temperatures.
Glass furnace is a key equipment in the glass production process. We use fire retardant cement extensively in furnace linings and bottom structures. It can withstand the impact of high-temperature flames and protect the furnace from damage.
Boilers of power plants, combustion furnaces of thermal power plants and chimneys of thermal power plants all need to use calcium aluminate cement as lining materials. This can resist the erosion of high-temperature smoke and combustion products.
We can also use heat resistant fire cement in the ceramic industry, metallurgical industry, aerospace and other fields. In other words, it can prepare refractory components and lining materials for various high-temperature equipment.
How to Make Fireproof Cement？
The process of making refractory cement involves preparing materials, mixing, casting and curing.
- First, prepare refractory materials and adhesives. The refractory cement castable and silica ramming mass manufacturers usually use refractory quartz sand, refractory alumina, etc. as refractory materials and Portland cement or high alumina cement as binders.
- Then, put the materials into the mixer according to the formula proportion, gradually add an appropriate amount of water and stir into a uniform slurry.
- Next, pour the mixed cement slurry into the mold or apply it directly to the surface to be painted.
- The cement slurry is then allowed to cure at room temperature for a period of time, or dried and sintered as necessary, to enhance its fire resistance and mechanical strength.
- Finally, the quality of the produced firestop cement products is inspected to ensure that they meet the requirements.
Fireproof Cement Suppliers – Kerui Refractory
As high alumina cement and high alumina bricks manufacturers, Kerui has a good reputation for product quality and reliability. The heat proof cement we produce undergoes strict quality control and testing. Therefore, customers can trust that the products provided by Kerui have excellent performance and stable durability.
Regardless of whether customers are engaged in steel, aluminum, chemicals, glass, etc., Kerui can provide suitable fireproof cement solutions. Our technical engineers have a thorough understanding of the processes and requirements of different industries. And, we can customize it according to the specific needs of our customers.
Kerui has a professional technical team and service team. Therefore, we are able to provide customers with comprehensive technical support and after-sales service. Besides, they have rich experience and professional knowledge to help customers solve various technical problems and respond to emergencies.
By establishing a stable cooperative relationship with Kerui Group China, customers can enjoy more favorable prices and more cooperation benefits. Meanwhile, Kerui can help customers improve production efficiency and reduce fire rated cement costs, achieving a win-win situation for both parties.
Conclusion
Kerui high temperature fire cement has been exported to five continents and more than 30 countries. What’s more, we have won the favor of customers with our high-quality refractory products, professional services, stable supply and competitive prices. So, if you want to buy refractory cement or want more details, please contact us. We will reply to you within 24 hours.