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Monolithic Refractories

Refractory Cement

Refractory cement for sale is an important and popular product. Because it has wide applications in manufacturing monolithic refractory products and directly using in kilns.

Type:CA50,CA70,CA80
Al₂O₃:50-82%
Initial Setting Time:30-240min
Final Setting Time:90-360min
72h Compressive Strength:40-82MPa
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Refractory Cement
Description
Technical Data
Application
Case
Related Products
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Description of Refractory Cement

refractory cement is mainly made of calcium aluminate. It is a hydraulic binder that is designed to resist thermal and mechanical stresses, making it an excellent choice for environments that experience high temperatures, such as furnaces, kilns and other industrial applications.

Refractory cement is also called calcium alumina cement, heat resistant cement, monolithic refractory cement, moldable refractory cement, fireproof cement and so on. According to different using environment, you can choose suitable refectory cement for your project.

Technical Data of Refractory Cement

CA50 Technical Data:
Item/Grade A600 A700 A900
Chemical Composition ω (SiO2) ≤/% 7.8 7.5 5.5
ω (Al2O3) ≥/% 50.0 51.0 53.5
ω (Fe2O3) ≤/% 2.5 2.5 2.5
ω (R2O) ≤/% 0.4 0.4 0.4
ω (S) ≤/% 0.1 0.1 0.1
ω (Cl) ≤/% 0.1 0.1 0.1
325M ≤/% 15 12 8
Specific Surface Areas ≥/ (㎡/kg) 300 320 350
Setting Time Initial Setting Time ≥/ (min) 45 60 90
Final Setting Time ≤/ (min) 6 6 6
Flexural Strength ≥/Mpa 6h / / /
24h 6.0 6.5 8.0
72h 7.0 7.5 10.0
Compressive Strength ≥/Mpa 6h / / /
24h 45 55 72
72h 55 65 82
CA70 Technical Data:
Item/Grade CA70 CA70W CA70S CA71
Chemical Composition ω (SiO2) ≤/% 0.5 0.5 0.5 0.5
ω (Al2O3) ≥/% 68.5-70.5 68.5-70.5 68.5-70.5 69.5-71.5
ω (Fe2O3) ≤/% 0.2 0.2 0.2 0.2
ω (CaO)/% 28.5-30.5 28.5-30.5 28.5-30.5 27.5-29.5
ω (MgO) ≤/% 0.4 0.4 0.4 0.4
ω (R2O) ≤/% 0.4 0.4 0.4 0.4
Fineness d50/μm 11-4 8-11 6-9 10-13
-45μm ≤/% 8.0 5.0 5.0 8.0
Setting Time Initial Setting Time (min) 120-180 30-90 180-240 150-210
Final Setting Time (min) 150-240 90-180 240-330 210-300
Strength (ISO) Flexural Strength/Mpa 24h 7.5-10.0 8.0-10.5 8.0-10.5 8.5-11.0
72h 10.0-12.0 10.5-12.5 10.5-12.5 11.0-12.5
Compressive Strength/Mpa 24h 40-50 45-55 45-55 50-60
72h 45-55 50-60 50-60 55-65
CA80 Technical Data:
Item/Grade CA80 CA80S
Chemical Composition ω (SiO2) ≤/% 0.5 0.5
ω (Al2O3) ≥/% 78.0-81.0 78.0-81.0
ω (Fe2O3) ≤/% 0.2 0.2
ω (CaO)/% 17.5-20.5 17.5-20.5
ω (MgO) ≤/% 0.4 0.4
ω (R2O) ≤/% 0.4 0.4
Fineness d50/μm 5-8 5-8
-45μm ≤/% 5.0 5.0
Setting Time Initial Setting Time (min) 30-90 90-150
Final Setting Time (min) 90-180 270-360
Strength (ISO) Flexural Strength/Mpa 24h 5.0-7.5 5.0-7.5
72h 6.0-8.5 6.0-8.5
Compressive strength/Mpa 24h 30-40 30-40
72h 40-50 40-50

Applications of Refractory Cement

  1.  Metallurgical Industry: Used for repairing the linings of steel - making furnaces and ladles.
  2. Building Materials Industry: Employed for bonding the refractory layers in glass melting furnaces and ceramic kilns.
  3. Power Industry: Utilized as the lining for the high - temperature parts of boiler burners.
  4. Industrial Furnaces: Applied to the fabrication and maintenance of the linings of reheating furnaces and roasting furnaces.
Package Items of  Refractory Cement for Sale
  • Packing method: standard export packaging;
  • Paper bags: 25/50kg;
  • Big bags: 1.0/1.5mt;
Storage Tips of Refractory Cement
  1. Dry storage environment: workers should store the refractory cement off the ground in a dry environment and avoid rain and moisture;
  2. Far away from chemical: you’d better store the refractory cement away from substances that can contaminate or react with it;
  3. Height of stack: no more than one meter;
  4. Storage period: 6 months (best period) to 1 year.

Case of Refractory Cement

Related products of Refractory Cement

Refractory Mortar

Al₂O₃:46-95%;

Refractoriness:1300-1790℃;

Application:Brick Masonry;

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ZKM Series Refractory Mortar

Al₂O₃:46%-60%;

Fe₂O₃: 0.7%-1.0%;

Operating Temp:1300-1500℃;

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AZS Ramming Mass

ZrO₂:≥30%;

Al₂O₃:≥50%;

Bulk Density:≥2.85g/cm³;

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Zircon Ramming Mass

ZrO₂:≥63%;

Bulk Density:≥3.3g/cm³;

Max Particle Size:5mm;

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Led by Prof Shi Gan (renowned refractory expert), our 40+ R&D professionals drive innovation in green material technology
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China's highest technical for industrial R&D leadership.
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Principal inventor of the Triple-Resistant Brick, resolving critical glass furnace longevity challenges.
Zhengzhou Zhongke Refractories Co.
Lightweight insulation materials (alumina bubble bricks, mullite bricks)
Zhengzhou Zhongke New Materials Co.
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Zhengzhou Hengruida Materials Co.
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