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Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Specifications
Brand Name :
Jinghua
Model Number :
CA50 CA65 CA70 CA80
Certification :
ISO CE
Place of Origin :
China
MOQ :
1T
Price :
Negotiable
Payment Terms :
L/C,D/P,T/T,Western Union
Delivery Time :
2-4days
Description
High Quality CA50 CA65 CA70 CA80 Fire Resistant Cement Castable High Alumina Refractory Cement
Product Overview

Refractory cement, also known as calcium aluminate cement (CAC), is a specialized binding material engineered to withstand extremely high temperatures, typically exceeding 1500°C (2732°F). Unlike ordinary Portland cement, which degrades and loses strength under intense heat, refractory cement maintains its structural integrity and chemical stability in furnaces, kilns, fireplaces, and industrial reactors.

The unique performance of refractory cement stems from its distinct chemical composition and manufacturing process. The primary raw materials are limestone (calcium carbonate) and bauxite (aluminum ore), which are crushed, mixed, and heated in a kiln to approximately 1600°C through a process called sintering.

Technical Specifications
Item CA-50 CA-60 CA-70 CA-80
Chemical Component
Al2O3 /% 50-60 60-68 68-77 ≥77
SiO2 /% ≤8.0 ≤5.0 ≤1.0 ≤0.5
Fe2O3 /% ≤2.5 ≤2.0 ≤0.7 0.5
R2O (Na2O+0.658K2O) /% ≤0.4 ≤0.4 ≤0.4 ≤0.4
Rupture Strength MPa
1 day 5.5 2.5 5.0 4.0
3 days 6.5 5.0 6.0 5.0
28 days / 10.0 / /
Compressive Strength MPa
1 day 40 20 30 25
3 days 50 45 40 30
28 days / 80 / /
Setting Time Min
Initial time ≥30 ≥60 ≥30 ≥30
Final time ≤360 ≤1080 ≤360 ≤360
Key Features & Applications
  • High alumina content (40-80% Al₂O₃) provides excellent resistance to thermal shock, abrasion, and chemical attack
  • Rapid strength gain and good volume stability
  • Can be cast into complex shapes for custom applications
  • Used as binding agent in refractory concretes, mortars, and castables
  • Applications include industrial chimneys, steel ladles, pottery kilns, and pizza ovens
  • Available in low, medium, and high temperature service grades
Handling & Safety Notes

Refractory cement requires careful curing procedures. It must be kept moist for the first 24 hours, then dried slowly to prevent steam spalling. Crucially, refractory cement should never be mixed with ordinary Portland cement, as the lime content in Portland cement will drastically lower its heat resistance.

Product Images
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
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Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades

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Product Detail
Brand Name :
Jinghua
Model Number :
CA50 CA65 CA70 CA80
Certification :
ISO CE
Place of Origin :
China
MOQ :
1T
Price :
Negotiable
Contact Supplier
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades
Fire Resistant High Alumina Cement with High Temperature Resistance in CA50-CA80 Grades

Qingdao Leadsun Refractory Co., Ltd

Verified Supplier
1 Years
qingdao
Since 2014
Business Type :
Distributor/Wholesaler, Exporter, Trading Company, Seller
Main Products :
Ceramic Fiber Blanket, Fire Clay Brick, Insulation Refractory Bricks
Total Annual :
3000000-5000000
Employee Number :
5~20
Certification Level :
Verified Supplier
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