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.
High Alumina Cement Uses
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 concrete and high alumina refractory cement are 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 is also used in 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 performancealumina cement, please feel free to contact us forhigh alumina cement price.
As one of high alumina cement suppliers and high alumina cement manufacturers, we will do our best to meet all the needs of customers.
March 1, 1997 officially carried out market research and other preparatory work,determined the scope of the company's business. Based on years of research and practice, on July 9, 2001 formally incorporated OREWORLDTrade (Tangshan) Co., Ltd., to sell non-metallic mineral products globally.
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