high aluminous cement,
high alumina castable refractory
High Temperature High Alumina Refractory Cement High Wear Resistance Available
Feature For High Alumina Cement:
Lower porosity, High chemical stability, High temperature performance,High wear resistance
The product is usually used as various kiln materials for metallurgy, petrochemical, petroleum, machinery, building materials and other industries
Calcium aluminates ( alumina cements or high alumina cement ) are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). On the basis of proportion of each raw materails, and ground into a fine powder, the clinker becomes calcium aluminate cement (CAC) which forms a paste when mixed with water. This has the ability to harden very quickly: it forms a rigid solid within 24 hours. The product obtained after cooling is a hard mineral: calcium aluminate clinker.
There are two distinct ways to use calcium aluminates: as high-performance binders and as mineral reagents in a variety of industries.
1: As binders, calcium aluminates are used in concretes and mortars for specialised applications for their properties of resistance to corrosion, abrasion and heat combined with rapid hardening and the ease of controlling grading variations.
Calcium aluminate cements are 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.
2: As reagents, calcium aluminates are 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.
1. Construction of sulfate corrosion resistance and high temperature proof.
2. Used in rush repairs, leakage stopping , resistance to sulfate attack.
3. Ideal binder for refractoriness such as refractory concrete, refractory castable, ramming mixing, gunning mixing and manmade marble bricks.
4. Ceramic adhesive.
5. Used for sealing coating products and refractory mortar.
6. Used in chemical industry, metallurgical industry,and construction industry.
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