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