Refractory Cement
Zhengzhou Caihua Kiln Masonry Installation Co.,Ltd. is professional manufacturer of fire bricks, Mortar, Pre-cast, Pre shape, Insulation products, Castable, Functional Products for Iron & Steel, Cement, Glass, Power & Petrochemical Industries. We have many types of refractory cement, including high strength refractory cement, castable refractory cement 50 lbs, alumina refractory cement, calcium alumina cement, 3000f refractory cement, etc. Refractory cement, a versatile composite of various mixtures such as fireclay, silica, and ganister, or combinations like fireclay with crushed brick, is a specialized material designed to withstand high temperatures.
Why Choose Us?
Rich Experience
CH Refractories with 40 years production and 15 years exporting experience to provide customers full supporting.
Professional Team
The company has 120 employees, including 20 professional engineers, who can provide professional product design and technical support.
Advanced Equipment
The company is equipped with two 1000-ton brick machines, ten 630-ton brick machines, two 180-meter high-temperature tunnel kilns, as well as a complete set of equipment for testing physical and chemical properties.
Broad Market
Products are exported to Germany, Korea, Indonesia, Pakistan, Malaysia, Saudi Arabia, Egypt, Russia, Uzbekistan and other countries.
High Strength Refractory Cement
The High Strength Refractory Cement are engineering materials specially designed to withstand extremely high temperature environments and are widely used in steel smelting, glass production, cement industry, electric power and ,chemical industries.
Calcium Alumina Cement
Calcium Alumina Cement is also known as refractory cement, high alumina cement, mainly used as binder of refractory products. Its mainly grades including A600, A700 and CA70.
Alumina Refractory Cement
Alumina refractory cement is Using high-quality bauxite and high-quality lime as raw materials, they are mixed into an appropriate amount of raw material according to a certain proportion. After sintering, the clinker with aluminate as the main component is obtained, and then ground into fine powder to make fire-resistant water Hard cementitious material, called refractory cement.
Specifications of Refractory Cement
|
Brand |
CA50- A600 |
CA50-A700 |
CA50-A900 |
CA-70 |
|
|
Chemical Composition (%) |
Al2O3 |
≥50 |
≥51 |
≥53.5 |
68.5-70.5 |
|
SiO2 |
≤7.8 |
≤7.5 |
≤5.5 |
≤0.5 |
|
|
Fe2O3 |
≤2.5 |
≤2.5 |
≤2.5 |
≤0.2 |
|
|
CaO |
/ |
/ |
/ |
28.5-30.5 |
|
|
MgO |
/ |
/ |
/ |
≤0.4 |
|
|
R2O |
≤0.4 |
≤0.4 |
≤0.4 |
≤0.4 |
|
|
S |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
Cl |
≤0.1 |
≤0.1 |
≤0.1 |
/ |
|
|
325 mesh residue on sieve(%) |
≤15 |
≤12 |
≤8 |
/ |
|
|
d50(μm) |
/ |
/ |
/ |
11-14 |
|
|
-45μm(%) |
/ |
/ |
/ |
≤8.0 |
|
|
Specific Surface (m2/kg) |
≥300 |
≥320 |
≥350 |
/ |
|
|
Setting time(h:min) |
Initial setting (min) |
≥45 |
≥60 |
≥90 |
120-180 |
|
Final Setting (min) |
≤6 |
≤6 |
≤6 |
150-240 |
|
|
Cold Modulus of Rupture (MPa) |
24 hour |
≥6 |
≥6.5 |
≥8 |
7.5-10 |
|
72 hour |
≥7 |
≥7.5 |
≥10 |
10-12 |
|
|
Cold Crushing Strength (Mpa) |
24hour |
≥45 |
≥55 |
≥72 |
40-50 |
|
72hour |
≥55 |
≥65 |
≥82 |
45-55 |
|
The calcium aluminate cement clinker is made by burning bauxite and limestone, with calcium aluminate as the main component and alumina content of about 50%.
The main minerals in calcium aluminate cement are calcium aluminate (CaO · Al2O3) and other aluminates, and a small amount of dicalcium silicate (2CaO · SiO2). The outer surface of aluminate cement often presents yellow or brown, and also presents gray in some cases. The aluminate cement can maintain a firm role in high temperature, so it is widely used as a high-quality additive material in thermal furnaces or wall lining binder.
Usage of Refractory Cement
Lining furnaces and kilns: Refractory cement is often used to line the inside walls of furnaces and kilns, where it helps to insulate the equipment and protect it from the high temperatures involved in the manufacturing process.
Fireplace and wood stove construction: Refractory cement is used in the construction of fireboxes and wood stoves, where it helps to protect the structure from the high temperatures generated by the fire.
Pizza Ovens: Wood fire pizza ovens typically include castable refractory cement in their construction.
Boiler construction: Refractory cement is sometimes used in the construction of boilers, where it helps to insulate the equipment and protect it from the high temperatures and pressures involved in steam generation.
Furnaces for Industrial Manufacturing: Refractory cement is used in the construction of furnaces, where it helps to insulate the equipment and protect it from the high temperatures involved.
Crematoriums: The extreme temperatures required for the incineration of remains require refractory castables to help insulate and maintain hot operating temps.
Other high-temperature applications: Refractory cement is also used in a variety of other high-temperature applications, such as in the manufacturing of ceramics, in the petrochemical industry, and in the production of iron and steel
Storage Requirements of Refractory Cement
- Good covered store to prevent water from rain and heat from the sun.
- Good air ventilation is required to keep dry atmosphere and stable temperature.
- Good floor conditions, strong and hard, dry, no cracks, and horizontally leveled.
- The storage layout shall be well designed and managed to obtain maximum tilization and easy access.
- The storage area should be close to the work site.
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fire brick with good thermal conductivity, metallurgical mould release agents, metallurgical suspending agents