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Aluminate cement refractory castable
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Product: Views:203Aluminate cement refractory castable 
Unit price: Negotiable
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Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2017-09-07 01:20
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Model Number: CA50-G925 Key Specifications/Special Features: Fused calcium aluminate cement is melted in electric arc furnaces by adopting the excellent alumina and limestone as its raw materialsIts characteristics are stable quality, small water demand, fast and adequate hydration, early high strength, etcIt is the bonding agent for producing all kinds of high performance monolithic refractories.Our excellent Gelatinizer with unshaped refractory used for preparation of low cement and ultra-low cement castable. TypePropertiesAL-70
AL-75 AL-80 AL-85 AL-90
Chemical
Composition (%)		 AL2O3 68-71 74-76 78-82 83-85 88-90
CaO ≤30 ≤24 ≤20 ≤15 ≤10
SiO2 ≤0.3 ≤0.3 ≤0.3 ≤0.3 ≤0.3
Fe2O3 ≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.2
24h strength
(Mpa)		 Compressive strength ≥40 ≥40 ≥40 ≥28 ≥18
Bending strength ≥6 ≥6 ≥6 ≥4 ≥2.5
Specific surface area（cm2/g） ≥6000 ≥6000 ≥8000 ≥8000 ≥8500
Refractoriness（℃） ≥1790 ≥1790 ≥1790 ≥1790 ≥1790
Mineralogical composition Principal mineral phase CA CA2αA* CA CA2αA* CA CA2αA* CA CA2αA CA CA2αA
Secondary mineral phase C12 A7 C12 A7 C12 A7 C12 A7 C12 A7
EXP: months EXP: six month, six month-twelve month.
Specific properties Initial setting time can be adjusted, the type can be classified as speediness setting, midvelocity setting、tardiness setting, particularly tardiness setting etc.
Usage Excellent Gelatinizer with unshaped refractory used for preparation of low cement and ultra-low cement castable.