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Wholesale High Temperature Refractory Cement Ca70 Ca80 High Alumina Fireproof Cement For High Temperature Furnace

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Wholesale High Temperature Refractory Cement Ca70 Ca80 High Alumina Fireproof Cement For High Temperature Furnace

Model Number : Refractory Cement

Size : powder

Payment Terms : L/C,D/P,T/T,Western Union

Price : 200 usd - 700usd

Type : CA50 A600 A700 A900 CA70 CA80

Supply Ability : 1000 tons/month

Certification : ISO CE

Package : bag+ ton bag

MOQ : 1 tons

Delivery Time : 7-10 days

Color : Grey

Place of Origin : CHINA

Al2O3 : 50-80%

Packaging Details : Bag + Ton bag

Brand Name : LEADSUN

Refractoriness : 1350-1850C

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Wholesale High Temperature Refractory Cement CA70 CA80 High Alumina Fireproof Cement
High Alumina Cement—often referred to as bauxite cement—is a specialized hydraulic binder made by grinding clinker that contains approximately 50% or more alumina (Al₂O₃). Its chief mineral phase is calcium aluminate, which sets it apart from Portland cement, whose chemistry revolves around calcium silicates. This distinct composition endows the material with outstanding characteristics, making it frequently called refractory cement.
One of its primary roles lies in the production of low-cement, high-alumina castables—advanced refractory concretes widely used to construct, reline, or repair high-temperature industrial furnaces and kilns across sectors such as metallurgy, ceramics, and waste incineration. These castables deliver superior thermal insulation, strong resistance to acidic slag attack, and sustained mechanical strength under intense heat.
Beyond high-temperature applications, High Alumina Cement also proves invaluable in time-critical engineering works, thanks to its rapid setting behavior and impressive early-age strength. It is therefore heavily relied upon in emergency repairs of pressurized defense structures, swift road restoration, and specialized rehabilitation tasks where minimizing downtime is essential.
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
Why Choose Our Products?
  • Optimized Workability: Features stable physical performance, low water requirement, and rapid, complete wet hydration for easier mixing and placement.
  • Excellent Durability: Exhibits good resistance to corrosion, high wear resistance, and high thermal shock stability.
  • Superior Bonding & Integrity: Forms a strong, integral bond with furnace linings and aggregates, ensuring monolithic structural integrity.
  • Rapid-Hardening & High Early Strength: Achieves high compressive and rupture strength within 1-3 days, accelerating project timeline.
Primary Applications
  • Furnaces of metallurgy industry, heat treatment furnace
  • Furnace of incineration of garbage, recirculating fluidized bed furnace
  • Furnaces of chemical industry and construction industry
Product Gallery
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Frequently Asked Questions (FAQ)
Q1: How do I select the right insulation grade for my furnace?
A: Selection depends on the maximum operating temperature, thermal cycling frequency, and chemical atmosphere. Please provide your design specifications for a tailored recommendation.
Q2: Do these materials contain hazardous substances?
A: We offer a range of bio-soluble (low-bio-persistence) fibers that meet international health and safety standards for handling and usage.
Q3: Can you provide customized shapes?
A: Yes, we provide vacuum-formed custom shapes, blocks, and modules based on your CAD drawings to ensure a perfect fit for your equipment.

Product Tags:

high temperature refractory cement

      

fireproof cement for furnace

      

high alumina castable cement

      
Wholesale Wholesale High Temperature Refractory Cement Ca70 Ca80 High Alumina Fireproof Cement For High Temperature Furnace from china suppliers

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