high temperature calcium aluminate high alumina cement

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China main port
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25 m.t.
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2000 m.t./month

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Product Description

 

Description of calcium aluminate high alumina cement

 The calcium aluminate high alumina cement is made by bauxite and lime as raw material,calcined and grinded after compounding with certain rate.

 

Advantages of calcium aluminate high alumina cement

 The calcium aluminate high alumina cement has high strength and easy to construct.

Applications of calcium aluminate high alumina cement

The calcium aluminate high alumina cement can be used to compound the unshaped refractory and for some rush-to-build constructions.

Physical and Chemical Indexes

 

CharacteristicItemUnitcalcium aluminate high alumina cement
A600A900CA-70CA-80
Superficial area/m²/kg354.8425.2612608
Chemical contentsSiO2%7.815.860.320.28
Al2O3%51.2654.1273.6878.86
Fe2O3%1.781.720.320.15
R2O%0.260.230.20.21
Setting timeInitial setting timeminute12820510968
Final setting timeminute159287172121
Rupture strength1 dayMpa6.19.28.25.7
3 daysMpa7.111.110.27.7
110℃Mpa//128.9
Compressive strength1 dayMpa52.472.555.843.2
3 daysMpa56.881.970.655.4
110℃Mpa//89.880.8
high temperature calcium aluminate high alumina cement


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Q:How to prolong the furnace age of Induction furnace by using fireproof materials?
magnesia solid materials have thermal endurance and erosion/ performance and its change of temperature is likely to cause cracks. properties of materials (aluminum) in such case have to be taken into consideration.
Q:What's the fire resistance rating of the exterior fire retardant coating?
Exterior thick fire-resistant coating for steel structure can reach the first level of fire resistance, thin fire-resistant coating for steel structure can be fire-resistant for three hours, and ultra-thin fire-resistant coating for steel structure can just be within the second level of fire resistance.
Q:Which industry does refractory belong to?
It belongs to decoration industry.
Q:Refractory factory grinding brick dust harmful to the body?
Inhalation of this dust can affect people's respiratory tract for a long time
Q:What's the frequently used refractory material?
What's the frequently used refractory material in the market? It is usually classified into four categories: Common Refractory: silica brick, semi-silica brick, refractory fireclay block, high alumina refractory brick, magnesia brick, etc. Unshaped Refractory: repairing mass, ramming refractory, refractory castable, plastic refractory, refractory mortar, gun-mix refractory, sling refractory, refractory coating, lightweight refractory castables, stemming, etc. Special Refractory: AZS brick, corundum brick, direct-bonded magnesia-chrome bricks, carborundum brick, silicon nitride bonded silicon carbide brick, nonoxide refractories like nitride, silicide, sulfide, boride and carbide, and oxide refractories like calcium oxide, chromium hemitrioxide, alumina, magnesium oxide and beryllia, etc. Fireclay Insulating Refractory: diatomite product, asbestos product, insulation board, etc.
Q:How to apply the alumina powder on refractories?
What kind of the refractories can make the aluminium oxide increase the aluminum content and specific gravity, and erosion-resistant.
Q:Who knows the external wall thermal insulation materials fire rating requirements?
1. The thermal insulation material of level A combustion performance: Rock wool, glass wool, foam glass, foamed ceramics, foam cement, hole-closed perlite, etc. 2. combustion performance is level B1 insulation materials: Extruded polystyrene board (XPS) after special treatment / Special treatment of polyurethane (PU), phenolic aldehyde and gelatine powder polyphenyl granule 3, combustion performance is level B2 insulation material: Molding polystyrene board (EPS), extruded polystyrene board (XPS), polyurethane (PU), polyethylene (PE), etc. See the 2009 edition construction technical measures 4.3.6 Level A insulation material is only for fireproofing, but its thermal insulation performance is not better than organic XPS \\ EPS and other materials. I feel the best insulation materials should be modified phenolic board, which can keep insulation and fireproofing, but the unit price is very expensive. Insulation materials in the domestic market have some disadvantages, it is better to considere the materials within the acceptable range in the building needs.
Q:Does anyone know what is a lightweight refractory material?
Light weighted castable is one of the kind.
Q:What are Grade-A waterproof inorganic thermal insulation materials?
Grade-A waterproof inorganic thermal insulation materials include: 1. external wall thermal insulation materials: (1) silicate thermal insulation material (2) gelatine powder polyphenyl granule (3) steel wire gauze picking cement cystosepiment (Estazolam plate) (4) extruded sheet; 2. roofing materials: (1) XPS Extruded sheet (2) EPS cystosepiment (3) perlite and perlite bricks (4) vermiculite brick; 3. heating and air conditioning material: PUR, rubberplastic sponge, polystyrene foam, glass wool, rock wool; 4. steel structure material: polystyrene, extruded board, polyurethane board, glass wool roll mat, etc.
Q:How is the development of Xinmi refractories industry? What's its advantages and disadvantages?
The advantages are largest scale, top production amout in the country, accounting for one-third of the national market, having technology, strength and the market. The disadvantages are the lack of mineral resources, serious environmental pollution,

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