High Alumina Refractory Cement

High alumina refractory cement has the characteristics of high refractoriness, high temperature stability and strong operability. Therefore, it is very important for high temperature industries. Kerui Refractory provides cement with high-quality raw materials and excellent manufacturing process. At the same time, we also provide kiln solutions and customized cement.

  • Al2O3: 50-81%;
  • SiO2: ≤0.5-7.8%;
  • Flexural Strength/Mpa(24h): 5.0-10.5;
  • Compressive Strength/Mpa(24h): 30-72;
  • Certification: ISO9001/ISO14001/ISO45001/ISO50001;
  • Sample: free sample available;
Free Sample Available to Any Country
High Heat Resistance
Environmentally Friendly
Rapid Hardening
Easy Construction

High Alumina Refractory Cement 2024

High Alumina Refractory Cement for Sale

High aluminate cement is a water-setting cementitious material made by mixing high alumina bauxite, a binder (calcium aluminate, water glass, aluminum sulfate, etc.), and an admixture (water reducer, etc.). Its main components are alumina and silica. Their composition ratio is at least 57.8%. This moldable refractory cement has high strength and volume stability at high temperatures.

Kerui offers CA50, CA70, and CA80 cement. And we support immediate dispatch when this kind of cement in stock.

CA50 Refractory Cement
CA50 Cement
CA70 Cement
CA70 Cement
CA80 Refractory Cement
CA80 Cement

Parameters of Kerui High Alumina Cement

CA50 High Alumina Cement

ItemA600A700A900
SiO2, %7.87.55.5
Al2O3, %50.0 51.0 53.5
Fe2O3, %2.52.52.5
R2O, %0.40.40.4
S, %0.10.10.1
CI, %0.10.10.1
325M Residue on Sieve, %15128
S, m²/kg300320350
Initial Setting Time, min456090
Final Setting Time, h666
Flexural Strength, Mpa1d6.0 6.58.0
3d7.0 7.510.0
Compressive Strength, Mpa1d455572
3d556582

CA70 High Alumina Cement

ItemCA70
Properties Determined according to GB201-2000
SiO2,%≤0.5
Al2O3,%68.5-70.5
FeO3,%≤0.2
CaO,%28.5-30.5
MgO,%≤0.4
R2O,%≤0.4
FinenessD50, um11-14
45um, %≤8.0
Setting Time, minInitial Setting, IS120-180
Final Setting, FS150-240
Flexural Strength, Mpa1d7.5-10.0
3d10.0-12.0
Compressive Strength,
Mpa
1d40-50
3d45-55
Cement Properties in Testing Castables
Setting Time, min20°C60-90
35°C30-50
Vibration Flow, mm
(20°C)
Initial Flow265-275
10min255-265
30min235-245
60min230-240
Flexual Strength, Mpa20°C*24h4.5-5.5
110°C*24h10.0-11.5
1100°C*4h12.0-14.0
Compressive Strength,
Mpa
20°C*24h35-45
110°C*24h85-95
1100°C*4h100-120
Linear Change, %1100°C*4h≤-0.25

CA80 High Alumina Cement

ItemCA80
Properties Determined according to GB201-2000
SiO2, %≤0.5
Al2O3, %78.0-81.0
Fe2O3, %≤0.2
CaO, %17.5-20.5
MgO, %≤0.4
R2O, %≤0.4
FinenessD50, μm5-8
-45μm, %≤5.0
Setting Time, minInitial Setting, IS30-90
Final Setting, FS90-180
Flexural Strength, Mpa1d5.0-7.5
3d6.0-8.5
Compressive Strength, Mpa1d30-40
3d40-50
Cement Properties in Testing Castables
Setting Time, min20℃90-120
35℃40-60
Vibration Flow, mm
(20℃)
Initial Flow255-265
10min250-260
30min240-250
60min235-245
Flexual Strength, Mpa20℃*24h3.0-4.0
110℃*24h8.0-9.0
110 *24h11.0-13.0
Compressive Strength, Mpa20℃*24h25-35
110℃*24h60-70
1100℃*4h100-120
Linear Change, %1100℃*4h≤-0.15

Advantages of Kerui High Aluminous Cement

  • Effective resistance to acidic and alkaline slag;
  • High compressive strength;
  • Good wear resistance;
  • High temperature rapid condensation hardening;
  • Refractory temperature up to 1750 degrees Celsius;
  • Volume stability at high temperatures;
  • Any shape and size to be processed;
  • The strength improvement and water reducing property of the castable.

Durable High Alumina Refractory Cement - Kerui Refractory

Applications of Kerui Alumina Refractory Cement

  • Masonry
    It can be used for masonry of industrial chemical kilns, such as steelmaking furnaces, blast furnaces, electric furnaces, and metallurgical furnaces.
  • Repair
    It can be used to repair various industrial chemical kilns, such as cement kilns, glass kilns, ceramic kilns, and lime kilns.
  • Manufacturing
    It can be used to manufacture refractory products, such as refractory castables, refractory bricks, and refractory coatings.