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aluminate (7)

CSA Cement

What is CSA Cement
CSA(Calcium Sulfoaluminate Cement) cement is a special cement used in many applications where early high strength and fast setting development are necessary. CSA cement is short for Calcium Sulfoaluminate Cement, also named rapid setting cement, high strength cement, fast hardening cement, CSA type III and CSA binder.


Cement CSA (Calcium Sulfoaluminate Cement) Characteristics
• Appearance: light grey powder
• Early-high strength
• Rapid setting: initial setting time can reach 12~20 minutes
• Tiny expansion and low shrinkage
• Low degree of shrinkage
• Low alkali: PH value is about 11 and lower than Portland cement.
• No rust to steel
• Freeze-thaw resistance
• Impermeability
• Resistance to sulfate attack
• Low carbon footprint


CSA cement types (Calcium Sulfoaluminate Cement) of Storage, transportation and packing
• To be stored in dry cool place and not mix with other substance
• Transportation: as common goods
• Packing: jumbo bag or small bag with pallets


We are excellent calcium aluminate supplier in China. If you are interested in the high alumina cement price, please feel free to contact us.

 

Oreworld trade (Tangshan) co., Ltd. has been engaged in exporting business for about 20 years. It is a professional cement supplier. If you want to know more details or want a quotation, just feel free to contact us!

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Clay Insulation Brick

Diatomite brick is a kind of Clay Insulation brick. Thermal Insulation Bricks are high porosity refractories with low thermal conductivity and high porosity (no less than 45%) used to reduce heat losses and thus to maximize heat conservation within the furnace.


Clay Insulation brick Characteristics
●High porosity
●Low volume density
●Low Thermal conductivity


Clay Insulation Bricks Application:
Clay Insulation Bricks are widely used in various industrial furnaces such as hear boilers, glass kilns, cement kilns, fertilizer making gas furnaces, blast furnaces, hot blast stoves, coking furnaces, electric furnaces, etc. They are mainly used in insulation layer of furnace that do not contact with molten materials and erosive gas. The working temperature is 1150-1400 degrees centigrade.


Clay Insulation brick Technical data:
We offer bulk density from 0.4~1.5g/cm. Compresive strength is from 1.0~5.9Mpa. Working temperature is 1150~1400℃. Thermal conductivity is 0.2~0.7 w/m.k at 350℃±25℃.


Clay Insulation bricks packing
By cartons and pallets.

 

Oreworld trade (Tangshan) co., Ltd. has been engaged in exporting business for about 20 years. It is one of the most professional high alumina cement suppliers in China. If you want to know more details or want a quotation, just feel free to contact us!

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Calcium Aluminate Cement

Description of Calcium aluminate cement
Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral: calcium aluminate clinker. 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.
Application of calcium aluminate cement
There are two distinct ways to use calcium aluminates: as high-performance binders and as mineral reagents in a variety of industries.
As binders, calcium aluminates are 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.
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.
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.
Calcium Aluminate Cement Manufacturing Process:
1. When preparing refractory concrete, fix on the aggregate according to using condition. Choose the proper capacity graduation to make maximum density. Be noted to match and adapt with cementing material.
2. According to certain proportion, add water and mix by man or machine into mortar and then begin casting construction. Use up the ready mortar within 40 min. Calcium Aluminate  Cement’s hydration heat concentrate on early stage. Casting thickness should not exceed 3 cm each time. Water curing immediately when concrete goes hardening and the curing time should not less than 3 days.
3. When prepare expanding cement, Calcium Aluminate clinker’s dosage is 73-76%, CaSO4·2H2O dosage is 24-27%. When prepare self-stressing cement, the mixing ratio of CaSO4·2H2O should be increased.
Calcium Aluminate Cement Notice:
1. In order to avoid uncontrollable setting time, do not mix with Portland cement, lime etc of which separate out calcium hydroxide cementing material. Before use, clean all the mixing machinery.
2. Steam curing to accelerate concrete’s hardening. The curing temperature should not higher than 50℃.
3. Refractory concrete’s late strength decline big, design should according to the lowest stable strength. CA-50 bonded concrete’s lowest stable strength should be determined by the lowest strength of 7-14 days of demoulding sample curing in 20℃±1℃ water.

Calcium aluminate Cement Packing:
by 50kgs bag. Store in shady, cool and dry place. Avoid stamp and mix with other substance.

Where to Buy Calcium Aluminate Cement

We are professional in high alumina cement manufacturing process and produce excellent Calcium Aluminate cement, high alumina cement and high temperature alumina cement supplier, please feel free to contact us.

 

Oreworld trade (Tangshan) co., Ltd. has been engaged in exporting business for about 20 years. It is a professional cement supplier. If you want to know more details or want a quotation, just feel free to contact us!

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Calcined Bauxite

Calcined Bauxite Introduction


Calcined Bauxite manufacturers produce Calcined Bauxite by firing (heating) the superior grade Bauxite at high temperature (from 850℃ to 1600℃). This removes moisture thereby increasing the alumina content. Compared to an alumina content of about 57 % to 58 % in raw Bauxite, Calcined Bauxite has an alumina content of 75 % to 90 %. The heating is carried out in rotary kilns. Calcination is done at different temperatures ranging from 850 ℃to 1600 ℃ depending upon the customer’s application.

Calcined Bauxite Applications
1. Aluminium metallurgy
2. Precision casting / Investment casting:
3. Refractory: high alumina bauxite’s refractoriness can reach 1780°C.
4. Aluminium silicate refractory fiber: The high alumina bauxite grog can melt under 2000°C-2200°C     in the electric arc furnace.After a series of processing, it can become aluminium silicate refractory fiber,
5. Mixing magnesia and bauxite grog with binders to pour the molten steel ladle for better overall lining performance.
6. Producing bauxite cement
7. Abrasives
8. Ceramics industry
9. Chemistry industry for all kinds of aluminium compound.
Calinced Bauxite Package:
By 1 ton jumbo bag

 

Oreworld trade (Tangshan) co., Ltd. has been engaged in exporting business for about 20 years. It is one of the most professional high alumina cement suppliers in China. If you want to know more details or want a quotation, just feel free to contact us!

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Calcium Aluminate Cement

Description of Calcium aluminate cement
Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral: calcium aluminate clinker. 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.
Application of calcium aluminate cement
There are two distinct ways to use calcium aluminates: as high-performance binders and as mineral reagents in a variety of industries.
As binders, calcium aluminates are 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.
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.
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.

Calcium Aluminate Cement Construction method:
1. When preparing refractory concrete, fix on the aggregate according to using condition. Choose the proper capacity graduation to make maximum density. Be noted to match and adapt with cementing material.
2. According to certain proportion, add water and mix by man or machine into mortar and then begin casting construction. Use up the ready mortar within 40 min. Calcium Aluminate  Cement’s hydration heat concentrate on early stage. Casting thickness should not exceed 3 cm each time. Water curing immediately when concrete goes hardening and the curing time should not less than 3 days.
3. When prepare expanding cement, Calcium Aluminate clinker’s dosage is 73-76%, CaSO4·2H2O dosage is 24-27%. When prepare self-stressing cement, the mixing ratio of CaSO4·2H2O should be increased.
Calcium Aluminate Cement Notice:
1. In order to avoid uncontrollable setting time, do not mix with Portland cement, lime etc of which separate out calcium hydroxide cementing material. Before use, clean all the mixing machinery.
2. Steam curing to accelerate concrete’s hardening. The curing temperature should not higher than 50℃.
3. Refractory concrete’s late strength decline big, design should according to the lowest stable strength. CA-50 bonded concrete’s lowest stable strength should be determined by the lowest strength of 7-14 days of demoulding sample curing in 20℃±1℃ water.

Calcium aluminate Cement Packing:
by 50kgs bag. Store in shady, cool and dry place. Avoid stamp and mix with other substance.

Where to Buy Calcium Aluminate Cement

We are professional in high alumina cement manufacturing process and produce excellent Calcium Aluminate cement, high alumina cement and high temperature   China ca50 manufacturer, please feel free to contact us.

 

Oreworld trade (Tangshan) co., Ltd. has been engaged in exporting business for about 20 years. It is a professional cement supplier. If you want to know more details or want a quotation, just feel free to contact us!

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Fused Calcium Aluminate Slag

Fused Calcium Aluminate Slag

Introduction of Fused Calcium Aluminate Slag

Fused Calcium Aluminate slag for Metallurgy is a kind of auxiliary material for steelmaking as it speeds up secondary metallurgy process, especially faster desulphurization. Fused calcium aluminate slag is produced through selecting material of high quality, melting the material in electro-furnace, cooling, crashing and screening into different sizes.

Advantages of the Fused Calcium Aluminate Slag

1)  Uniform chemical compositions, low melting point, high melting speed, and short smelting time;
2)  It has no fluoride and doesn't erode furnace lining and ladle, and it is compact, non-absorbent, and easy to storage as well;
3) Stable phase and fast dust-reducing speed, rapid desulfurization  effect stabilized at 60%, and suppresses phosphorus into molten steel;
4)  Improving the protective effect and reducing erosion to ladle lining.

Sizes of the Fused Calcium Aluminate Slag

For Laddle Refining Slag:5-30mm, 5-50mm
Other sizes can be optimized by customer' requirement.

Application of the Fused Calcium Aluminate Slag

Improving steel quality
Improving productivity
Reducing costs
Protecting the environment.

Packing of the Fused Calcium Aluminate Slag

1000KG per big bag
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Calcium Aluminate Cement

 

Description of Calcium aluminate cement

Calcium aluminate cement, alumina cements or high alumina cements are obtained by the reaction at high temperature of lime (from limestone) and alumina (contained in natural minerals like bauxite). The product obtained after cooling is a hard mineral: calcium aluminate clinker. 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.

 

Application of calcium aluminate cement

There are two distinct ways to use calcium aluminates: as high-performance binders and as mineral reagents in a variety of industries.

 As binders, calcium aluminates are 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.

 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.

 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.

 

 

Calcium Aluminate Cement CA50 specification:

 

Index

Item

CA50-625

CA50-725

Al2O3, %

≥50, <60

≥50, <60

SiO2,%

≤8.0

≤8.0

Fe2O3,%

≤2.5

≤2.5

Specific surface area, m2/Kg

≥300

≥300

Setting time
Initial setting time,min
Final setting time,h

≥30
≤6

≥60
≤8

Compression strength , MPa
1d
3d

40
50

64.7
71.1

Bending strength, MPa
1d
3d

5.5
6.5

6.9
7.4

 

Calcium Aluminate Cement Construction method:

  1. When preparing refractory concrete, fix on the aggregate according to using condition. Choose the proper capacity graduation to make maximum density. Be noted to match and adapt with cementing material.
  2. According to certain proportion, add water and mix by man or machine into mortar and then begin casting construction. Use up the ready mortar within 40 min. Calcium Aluminate  Cement’s hydration heat concentrate on early stage. Casting thickness should not exceed 3 cm each time. Water curing immediately when concrete goes hardening and the curing time should not less than 3 days.
  3. When prepare expanding cement, Calcium Aluminate clinker’s dosage is 73-76%, CaSO4·2H2O dosage is 24-27%. When prepare self-stressing cement, the mixing ratio of CaSO4·2H2O should be increased.

 

Calcium Aluminate Cement Notice:

  1. In order to avoid uncontrollable setting time, do not mix with Portland cement, lime etc of which separate out calcium hydroxide cementing material. Before use, clean all the mixing machinery.
  2. Steam curing to accelerate concrete’s hardening. The curing temperature should not higher than 50℃.
  3. Refractory concrete’s late strength decline big, design should according to the lowest stable strength. CA-50 bonded concrete’s lowest stable strength should be determined by the lowest strength of 7-14 days of demoulding sample curing in 20℃±1℃ water.

 

Calcium aluminate Cement Packing:

by 50kgs bag. Store in shady, cool and dry place. Avoid stamp and mix with other substance.

 
Where to Buy Calcium Aluminate Cement

We are professional in high alumina cement manufacturing process and produce excellent Calcium Aluminate cement, high alumina cement and high temperature alumina cement supplier, please feel free to contact us.

 

As one of the high alumina cement suppliers in China, We have excellent csa china for sale, please feel free to contact us.

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