Oreworld Trade (Tangshan) Co., Ltd.
mp banner

Alumina Cements and Their Uses

High alumina cement is also called aluminate cement. Aluminate cement is a kind of hydraulically cementitious material, which is made from bauxite and limestone and calcined with calcium aluminate as the main component and alumina content of about 50%. Aluminate cement is usually yellow or brown, but also gray. The main minerals of aluminate cement are calcium aluminate (CaO·Al2O3, abbreviated CA) and other aluminates, as well as a small amount of dicalcium silicate (2CaO·SiO2).
High alumina cement can be used to bind various refractory aggregates (such as corundum, calcined high alumina bauxite, etc.) to make refractory mortar or concrete for lining cement rotary kilns and other industrial kilns.

Application of high alumina cement

(1) aluminum smelting industry. It is used in national defense, aviation, automobiles, electrical appliances, chemical industry, daily necessities and so on.
(2) precision casting. The bauxite clinker is processed into fine powder to make a casting mould and then is cast in precision. It is used in military, aerospace, communications, instrumentation, machinery and medical equipment departments.
(3) Used in refractory products. The refractoriness of bauxite clinker is as high as 1780 C. It has strong chemical stability and good physical properties. High alumina cement has early strength, so construction in kiln can shorten the curing period as far as possible, that is, so-called "one-day concrete". Therefore, high alumina cement is widely used in refractory industry.
(4) Aluminum silicate refractory fibers. It has the advantages of light weight, high temperature resistance, good thermal stability, low thermal conductivity, small heat capacity and mechanical vibration resistance.
(5) Using magnesia and bauxite clinker as raw materials and adding appropriate binder, the effect of casting integral barrel lining of ladle is very good.
(6) Aluminum compounds can be produced from bauxite cement, abrasive materials, ceramic industry and chemical industry.
  • Several Methods for Preparing Nano-graphite Powder

    (1) Mechanical grindingThe mechanical grinding method takes advantage of the fact that the interlayer force of graphite is much less than that of carbon atoms in the layer, which makes the bonding bet...

  • Application of Light Calcium Carbonate

    Lightweight calcium carbonate, also known as precipitated calcium carbonate, is prepared from limestone by carbonization. Lightweight calcium carbonate has a wide range of functions and uses. I'll giv...

  • Classification of Flake Graphite

    According to GB/T7216-2009 standard, graphite morphology in gray iron can be divided into six categories: A, B, C, D, E and F.A-flake graphite is uniformly distributed without direction; B-flake graph...

  • Types of Cement

    Cement is generally divided into ordinary Portland cement, Portland cement with mixed materials and special cement. Ordinary Portland Cement: By limestone, clay, iron ore powder in proportion to grind...

  • What is CSA Expansion Agent
    CSA expansion agent is made by expansion clinker that is high-temperature calcined in a rotary kiln, mixed with high-quality gypsum and modified components, and ground together according to a specific...
  • What is CSA Binder
    CSA Binder is short for Calcium Sulphoaluminate binder, which is also called Calcium sulphoaluminate clinker. It is one of the hydraulic binding materials.CSA Binder is a kind of semi-product for maki...
Contact Us
  • TEL:+ 86-315-5392226/7/8/9
  • EMAIL:info@oreworld.com
  • ADDRESS:Jinrong B/D No. 116 Xinhua West Road, 063000, Tangshan, Hebei, China