Products Description
Calcium alumina cement is a hydraulic cementitious material made from finely ground bauxite and limestone as its main mineral components, codenamed CA.
The Al2O3 content of CA50 calcium alumina cement is not less than 50%, the specific surface area is not less than 320 (m²/Kg), the initial setting time is generally 50 to 120 minutes, and the final setting time is 90 to 180 minutes. The strength should be greater than 50MPa after 3 days of testing.
The performance of calcium alumina cement has the characteristics of concentrated heat release, stable performance, and fast setting and hardening speed.
Chemical and physical index of calcium alumina cement
|
Brand |
CA50- A600 |
CA50-A700 |
CA50-A900 |
CA-70 |
|
|
Chemical Composition (%) |
Al2O3 |
≥50 |
≥51 |
≥53.5 |
68.5-70.5 |
|
SiO2 |
≤7.8 |
≤7.5 |
≤5.5 |
≤0.5 |
|
|
Fe2O3 |
≤2.5 |
≤2.5 |
≤2.5 |
≤0.2 |
|
|
CaO |
/ |
/ |
/ |
28.5-30.5 |
|
|
MgO |
/ |
/ |
/ |
≤0.4 |
|
|
R2O |
≤0.4 |
≤0.4 |
≤0.4 |
≤0.4 |
|
|
S |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
Cl |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
325 mesh residue on sieve(%) |
≤15 |
≤12 |
≤8 |
/ |
|
|
d50(μm) |
/ |
/ |
/ |
11-14 |
|
|
-45μm(%) |
/ |
/ |
/ |
≤8.0 |
|
|
Specific Surface (m2/kg) |
≥300 |
≥320 |
≥350 |
/ |
|
|
Setting time(h:min) |
Initial setting (min) |
≥45 |
≥60 |
≥90 |
120-180 |
|
Final Setting (min) |
≤6 |
≤6 |
≤6 |
150-240 |
|
|
Cold Modulus of Rupture (MPa) |
24 hour |
≥6 |
≥6.5 |
≥8 |
7.5-10 |
|
72 hour |
≥7 |
≥7.5 |
≥10 |
10-12 |
|
|
Cold Crushing Strength (Mpa) |
24hour |
≥45 |
≥55 |
≥72 |
40-50 |
|
72hour |
≥55 |
≥65 |
≥82 |
45-55 |
|
Packages:
The production process of CH Refractories is in strict accordance with ISO9001 international quality system standards. In order to ensure the high purity of raw materials, the inspection and selection of the main raw materials are all manually completed, and each material can flow into the next process after the manual inspection and selection of the inspection personnel. Auxiliary materials can be used only after passing inspection.
seaworthy packages
The cement package is four layers bag to keep product from moisture during shipping
proven experience
Our cement has been exported to Korea, Indonesia, UAE, Egypt, India and other countries. All customers feedback with stable and good performance
qualified staff
ISO 9001/SGS testing report
FAQ
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Q: How long is the production time?
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Q: Can you do OEM? Or customized packages?
Q: Can I visit your factory?
Chemical and physical index of calcium alumina cement
|
Brand |
CA50- A600 |
CA50-A700 |
CA50-A900 |
CA-70 |
|
|
Chemical Composition (%) |
Al2O3 |
≥50 |
≥51 |
≥53.5 |
68.5-70.5 |
|
SiO2 |
≤7.8 |
≤7.5 |
≤5.5 |
≤0.5 |
|
|
Fe2O3 |
≤2.5 |
≤2.5 |
≤2.5 |
≤0.2 |
|
|
CaO |
/ |
/ |
/ |
28.5-30.5 |
|
|
MgO |
/ |
/ |
/ |
≤0.4 |
|
|
R2O |
≤0.4 |
≤0.4 |
≤0.4 |
≤0.4 |
|
|
S |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
Cl |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
325 mesh residue on sieve(%) |
≤15 |
≤12 |
≤8 |
/ |
|
|
d50(μm) |
/ |
/ |
/ |
11-14 |
|
|
-45μm(%) |
/ |
/ |
/ |
≤8.0 |
|
|
Specific Surface (m2/kg) |
≥300 |
≥320 |
≥350 |
/ |
|
|
Setting time(h:min) |
Initial setting (min) |
≥45 |
≥60 |
≥90 |
120-180 |
|
Final Setting (min) |
≤6 |
≤6 |
≤6 |
150-240 |
|
|
Cold Modulus of Rupture (MPa) |
24 hour |
≥6 |
≥6.5 |
≥8 |
7.5-10 |
|
72 hour |
≥7 |
≥7.5 |
≥10 |
10-12 |
|
|
Cold Crushing Strength (Mpa) |
24hour |
≥45 |
≥55 |
≥72 |
40-50 |
|
72hour |
≥55 |
≥65 |
≥82 |
45-55 |
|
