High Alumina Cement
What is High Alumina Cement
High Alumina Cement (HAC, sometimes known as calcium aluminate cement (CAC) or aluminous cement) is composed of calcium aluminates, unlike Portland cement which is composed of calcium silicates. It is manufactured from limestone or chalk and bauxite.
Application of High Alumina Cement
There are two distinct ways to use calcium aluminates: as high-performance binders and as mineral reagents in a variety of industries. High alumina cement concreteand high alumina refractory cementare two important products.
As binders, high alumina cement is used in concretes and mortars for specialized applications for their properties of resistance to corrosion, abrasion and heat combined with rapid hardening and the ease of controlling grading variations. High alumina cement concrete is a good example for this use.
High Alumina cement usesin combination with other fine components. Hydraulic binders with new properties are then obtained. In this way, aluminates act as both a complex hydraulic binder and a mineral reagent interacting with the other components in the mix.
As reagents, high alumina cement is found in non-hydraulic systems. This is the case in metallurgical treatments (iron and steel industry, foundry) where specific grades of calcium aluminate are used for their low-temperature melting properties and for trapping molten metal impurities.
High Alumina Cement Properties
|
Items/grade |
CA50F |
A600 |
A700 |
A900 |
|
SiO2 |
≤8.0 |
≤7.8 |
≤7.5 |
≤5.5 |
|
Al2O3 |
≥50.0 |
≥50.0 |
≥51.0 |
≥53.5 |
|
Fe2O3 |
≤2.5 |
≤2.5 |
≤2.5 |
≤2.5 |
|
SpecificSurfaceArea(m2/kg) |
≥300 |
≥300 |
≥320 |
≥350 |
|
InitialSettingTime(min) |
≥30 |
≥45 |
≥60 |
≥90 |
|
FinalSettingTime(h) |
≤6 |
≤6 |
≤6 |
≤6 |
|
FlexuralStrength(MPa)1d |
≥5.5 |
≥6.0 |
≥6.5 |
≥8.0 |
|
FlexuralStrength(MPa)3d |
≥6.5 |
≥7.0 |
≥7.5 |
≥10.0 |
|
CompressiveStrength(MPa)1d |
≥40 |
≥45 |
≥55 |
≥72 |
|
CompressiveStrength(MPa)1d |
≥50 |
≥55 |
≥65 |
≥82 |
High alumina cement package
by 50kgs bag. Store in shady, cool and dry place. Avoid stamp and mix with other substance. If you are in need of high performance alumina cement, please feel free to contact us for high alumina cement price.
OREWORLD is a professional high alumina cement manufacturers,we provide csa cement, csa binder and etc. Want to know high alumina cement initial setting timeor more? Please contact us.
在线联系供应商
Other supplier products
 |
CSA Binder | CSA Binder Introduction: Calcium Sulfoaluminate binder is pure CSA clinker that grinded without any gypsum. It is a hydraulic cementitious mater... |
 |
Amorphous Calcium Aluminate | Amorphous Calcium Aluminate Details: The mineral of amorphous calcium aluminate (non-crystalline calcium aluminate) is C12A7. The alumina content ... |
 |
Oreworld Special Cements | Special cements are cements that serve some specific function such as altering the setting or hardening behavior of a concrete, producing different... |
 |
Calcium Aluminate Cement | Description of Calcium aluminate cement Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temp... |
 |
Clay Insulation Brick | Thermal Insulation Bricksare high porosity refractories with low thermal conductivity and high porosity (no less than 45%) used to reduce heat loss... |
