The technical index of refractory special cement :
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The index of Aluminate cement
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Aluminate cement
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CA40-Fused
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CA50-J5
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CA50-J6
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CA50-J7
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CA50-N
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CA50-J9
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CA50-Fused
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Blaine (cm2/g)
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2700
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3000
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3000
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3000
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3000
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4000
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4000
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Initial time(h:m)
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0:40
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0:30
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0:30
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0:30
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0:30
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1:30
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2:00
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Final time(h:m)
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4:00
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6:00
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6:00
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6:00
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6:00
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6:00
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6:00
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Flexural strength(Mpa)
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6hrs4.0
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4.0
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1 day
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5.5
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5.5
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6.0
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6.5
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6.0
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8.0
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10.0
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3 days
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6.5
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6.5
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7.0
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7.5
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7.0
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10.0
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11.0
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Compressive strength
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6hrs30.0
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35.0
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1 day
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50.0
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40.0
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45.0
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50.0
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50.0
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70.0
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75.0
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3 days
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60.0
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50.0
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55.0
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60.0
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60.0
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80.0
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85.0
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Chemical composition
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SiO2 %
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6.0
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8.0
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8.0
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8.0
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6.5
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6.0
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5.0
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Al2O3 %
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37.0
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50.0
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50.0
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51.0
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50.0
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53.0
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50.0
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CaO %
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38.0
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33.0
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33.0
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33.0
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33.0
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33.5
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38.0
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MgO %
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1.5
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1.5
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1.5
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1.5
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1.5
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1.5
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1.5
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TiO2 %
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3.0
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3.0
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3.0
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3.0
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3.0
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3.0
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3.0
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Fe2O3 %
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18.0
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3.0
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3.0
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2.5
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3.0
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2.5
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50.0
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