Kerui calcium aluminate cement for sale will never let you down. Because Kerui has developed a calcium aluminum cement that surpasses industry standards. As an important material, cement is popular in all kinds of high-temperature fields.
Before purchasing, the first question is to know what calcium aluminate cement is. Now this passage will introduce this type of aluminate cement briefly. Calcium aluminate cement (CAC) or high-alumina cement is a critical component in refractory materials and construction due to its exceptional properties and performance. It is cement with calcium monoaluminate or calcium disaluminate as the main mineral component. Besides, Kerui calcium aluminate cement consist of the combination of limestone and alumina at high temperatures, which results in the formation of calcium aluminate clinker. It is worth noting that the higher the aluminum content in calcium aluminate cement, the higher its price will be. However, with low impurities, the refractory cement from Kerui is the most cost-effective high-temperature solution.
Generally, calcium aluminate cement manufacturers divide calcium aluminate cement into different types according to its alumina content and early strength parameters. The most commonly used types of Kerui calcium aluminate cement are CA50, CA70, and CA80. This part will talk about the three types of Kerui cement. Meanwhile, of course, each type of them has different calcium aluminate cement prices. For further information on prices please contact us.
CA50 is a type of calcium aluminate cement with an alumina content of around 50%. Because of its rapid strength development and high early strength, this type of calcium aluminate cement is suitable for applications where require quick turnaround time.
| Item/Grade | A600 | A700 | A900 | |
|---|---|---|---|---|
| Chemical Composition | ω (SiO2) ≤/% | 7.8 | 7.5 | 5.5 |
| ω (Al2O3) ≥/% | 50.0 | 51.0 | 53.5 | |
| ω (Fe2O3) ≤/% | 2.5 | 2.5 | 2.5 | |
| ω (R2O) ≤/% | 0.4 | 0.4 | 0.4 | |
| ω (S) ≤/% | 0.1 | 0.1 | 0.1 | |
| ω (Cl) ≤/% | 0.1 | 0.1 | 0.1 | |
| 325M ≤/% | 15 | 12 | 8 | |
| Specific Surface Areas ≥/ (㎡/kg) | 300 | 320 | 350 | |
| Setting Time | Initial Setting Time ≥/ (min) | 45 | 60 | 90 |
| Final Setting Time ≤/ (min) | 6 | 6 | 6 | |
| Flexural Strength ≥/Mpa | 6h | / | / | / |
| 24h | 6.0 | 6.5 | 8.0 | |
| 72h | 7.0 | 7.5 | 10.0 | |
| Compressive Strength ≥/Mpa | 6h | / | / | / |
| 24h | 45 | 55 | 72 | |
| 72h | 55 | 65 | 82 | |
CA70 is a type of calcium aluminate cement with an alumina content of around 70%. Thus, CA70 has a higher ultimate strength and better durability than CA50. However, its early strength development is slower. As a result, CA70 is commonly used in applications where need high strength and durability, such as in the construction of precast concrete elements and in refractory applications.
| Item/Grade | CA70 | CA70W | CA70S | CA71 | ||
|---|---|---|---|---|---|---|
| Chemical Composition | ω (SiO2) ≤/% | 0.5 | 0.5 | 0.5 | 0.5 | |
| ω (Al2O3)/% | 68.5-70.5 | 68.5-70.5 | 68.5-70.5 | 69.5-71.5 | ||
| ω (Fe2O3) ≤/% | 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 | ||
| ω (MgO) ≤/% | 0.4 | 0.4 | 0.4 | 0.4 | ||
| ω (R2O) ≤/% | 0.4 | 0.4 | 0.4 | 0.4 | ||
| Fineness | d50/μm | 11-4 | 8-11 | 6-9 | 10-13 | |
| -45μm ≤/% | 8.0 | 5.0 | 5.0 | 8.0 | ||
| Setting Time | Initial Setting Time (min) | 120-180 | 30-90 | 180-240 | 150-210 | |
| Final Setting Time (min) | 150-240 | 90-180 | 240-330 | 210-300 | ||
| Strength (ISO) | Flexural Strength/Mpa | 24h | 7.5-10.0 | 8.0-10.5 | 8.0-10.5 | 8.5-11.0 |
| 72h | 10.0-12.0 | 10.5-12.5 | 10.5-12.5 | 11.0-12.5 | ||
| Compressive Strength/Mpa | 24h | 40-50 | 45-55 | 45-55 | 50-60 | |
| 72h | 45-55 | 50-60 | 50-60 | 55-65 | ||
CA80 is the calcium aluminate cement with an alumina content of about 80%. No doubt that it has the highest ultimate strength and best durability of these three types of cement. Meanwhile, its early strength development is slower than that of CA50 but faster than that of CA70. Therefore, CA80 is suitable for applications where high strength and durability are critical.
| Item/Grade | CA80 | CA80S | ||
|---|---|---|---|---|
| Chemical Composition | ω (SiO2) ≤/% | 0.5 | 0.5 | |
| ω (Al2O3)/% | 78.0-81.0 | 78.0-81.0 | ||
| ω (Fe2O3) ≤/% | 0.2 | 0.2 | ||
| ω (CaO)/% | 17.5-20.5 | 17.5-20.5 | ||
| ω (MgO) ≤/% | 0.4 | 0.4 | ||
| ω (R2O) ≤/% | 0.4 | 0.4 | ||
| Fineness | d50/μm | 5-8 | 5-8 | |
| -45μm ≤/% | 5.0 | 5.0 | ||
| Setting Time | Initial Setting Time (min) | 30-90 | 90-150 | |
| Final Setting Time (min) | 90-180 | 270-360 | ||
| Strength (ISO) | Flexural Strength/Mpa | 24h | 5.0-7.5 | 5.0-7.5 |
| 72h | 6.0-8.5 | 6.0-8.5 | ||
| Compressive strength/Mpa | 24h | 30-40 | 30-40 | |
| 72h | 40-50 | 40-50 | ||
One of the outstanding features of calcium aluminate cement is its rapid hardening. The high alumina content in calcium aluminate cement accelerates the hydration process. Meanwhile, the hydration reactions of calcium aluminate cements are highly exothermic. So it means this process releases large amounts of heat. As a result, this heat accelerates chemical reactions and causes rapid setting and hardening.
Calcium aluminate cement possesses a high refractoriness under load. Therefore, this refractory cement can maintain its strength and shape even when meets high temperatures or mechanical stress. This property is critical for the long-term performance. Meanwhile, its long service life can reduce the need for frequent repairs and replacements. So it play a role in cost savings in industrial applications.
Compared to other types of cement, calcium aluminate cement primarily consists of calcium aluminate phases, with Al2O3 as the main constituent. Meanwhile, Al2O3 possesses exceptional heat resistance which can withstand temperatures well above 1600℃ (2912℉) without significant. Therefore, this means that calcium aluminate cement can withstand moderately elevated temperatures without losing its structural integrity.
Because calcium aluminate cement demonstrates resistance in both acidic and alkaline conditions. It has good chemical resistance. Thus, this characteristic makes this refractory cement versatile for a wide range of chemical environments. For instance, calcium aluminate cement can withstand the corrosive effects of acids like sulfuric acid and bases like sodium hydroxide.
Calcium aluminate cement is a type of aluminate cement with low permeability. This refractory cement from Kerui company typically has low porosity. As a result, calcium aluminate cement is less permeable to gases and liquids. This property prevents the penetration of harmful substances, which will minimize the risk of water and damage to concrete structures in harsh environments.
Careful preparation of raw materials is paramount in calcium aluminate refractory cement production. High-purity bauxite, an aluminum ore, is chosen for its elevated alumina content. Then break these ingredients into small pieces to promote even mixing.
Mix the finely ground bauxite and limestone powders meticulously in precise proportions, which can ensure the desired chemical composition. Meanwhile, thorough blending guarantees uniformity throughout the mixture.
Then heat the mixed raw materials at high temperatures. During this process, a series of chemical reactions will occur. In the end, these reactions culminate in the formation of clinker, which is a fused mass consisting of calcium aluminate compounds.
Cooling is a necessary process of production. To prevent further reactions and preserve the desired phase composition, the hot clinker should be rapidly cooled. As a result, this critical step ensures the stability of the final product.
The cooled clinker is meticulously ground into a powder, in order to achieve the desired particle size distribution. Additionally, this grinding process guarantees the appropriate fineness of the calcium aluminate cement.
At last, Kerui will store the final calcium aluminate cement to ensure proper storage conditions. Subsequently, it carefully packages the cement in bags or other appropriate containers, which are ready for distribution and sale.
To acquire calcium aluminate cement, it is advisable to directly contact refractory manufacturers. Engaging in direct communication enables the exploration of potential budget-friendly alternatives. Besides, some manufacturers may offer competitive prices for larger quantities, while others may have specific cost-effective choices available. If Kerui has piqued your interest, this article will tell you more about us.
One can conveniently procure cac cement through various online platforms. Because these platforms offer the advantage of comparing prices and selecting products that offer optimal cost-effectiveness. For those seeking to purchase a substantial quantity of refractory cement, conducting a Google search for Kerui Refractory manufacturer can prove beneficial, as it presents an opportunity to reduce purchase costs.
Trust Kerui is always your best option to buy high-quality calcium aluminate cement. If you want to get the price listing of the refractories, please contact us. Additionally, you can find out us on Pinterest.