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Prodcut Name:Alumina Cement

Product Description

High alumina cement is melted in electric arc furnaces by adopting the excellent alumina and limestone as its raw material. Its characteristics are stable quality, little water demand, fast and adequate hydration, high strength etc. It is the bonding agent for producing all kinds of high performance monolithic refractories. Alumina cement is adopted for bind of refractory material and building mortar coagulant, rush repairs, rush construction, sulphate-resistant projects and project in winter etc. It is used abroad for ready made constructional structures to speed up construction in order to raise the working efficiency, shorten the time limit for a project, save time and cost.

Alumina Cement Type CA5-G6 (625#) CA50-G7 (725#) CA50-G9 (925#) CA50-F9 (Close to Secar 51) CA70 (Close to Secar 71)
Items Unit Standard Data
Blaine m2/kg GB8074-87 300 Min 300 Min 400 Min 400 Min 550 Min
Initial time Hour: minute GB/T17671-1989 0:30 Min 0:30 Min 1:30 Min 2:00 Min 30 Min
Final time     6:00 Max 6:00 Max 6:00 Max 8:00 Max 6:00 Max
Flexural strengh 1 day Mpa GB/T17671-1999 6.0 Min 6.5 Min 8.0 Min 10 Min 5.0 Min
3 days 7.0 Min 7.5 Min 10.0 Min 11 Min 6.0 Min
Compressinve Strength 1 day 45 Min 50 Min 70 Min 75 Min 30 Min
3 days 55 Min 60 Min 80 Min 80 Min 40 Min
Chemical composition SiO2 % GB/T205-200 8.0 Max 8.0 Max 6.0 Max 5.0 Max 1.0 Max
Al2O3 50.0 Min 51.0 Min 53.0 Min 50 Min 68.5-71.5
Fe2O3 2.5 Max 2.5 Max 2.0 Max 2.5 Max 0.7 Max
CaO 33.0 Min 33.0 Min 33.5 Min 38 Min 26.5-30.5
MgO 1.0 Max 1.0 Max 1.3 Max    
TiO2 3.0 Max 3.0 Max 3.0 Max    
Standard GB201-2000

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