Produced by calcining industrial aluminium oxide and fine limestone under strict mineralogical control in rotary kilns into clinker, cooling then grinding in ball mill.The content of alumina is approx. 80% in CA80 aluminate cement.
CA80 include several varieties as follows:
CA80-E
Early strength
Character & uses:
1. Without any additives
2. Suitable to confect all kinds of refractory castables, low cement and ultra low cement castables.
3. Suitable use in Summer
CA80-G
General
1. Without any additives.
2. Suitable to confect all kinds of refractory castables, low cement and ultra low cement castables.
3. high-temperature resistant
CA80-A
Additives
1. Containing a little additive.
2. Good fowability.
3. Long constructing control time.
4. Suitable use in Summer.
Specification:
Chemical composition %
Al2O3 77
SiO2 0.5
Fe2O3 0.5
R2O3 0.4
S (0.1)
Cl (0.1)
Physical properties
Fineness
0.045 Residue % (20max)
Blaine m2/kg 600min
Setting time
Initial min 30
Final h 6
Note: Data of CA80-A is not provided
CA80-E CA80-G CA80-A
Flexural strength Mpa
6h 3.0 - -
1d 4.5 4.0 4.5
3d 5.5 5.0 5.5
Compressive strength Mpa
6h 10 - -
1d 30 25 30
3d 40 30 40
Note: Data in () is according with the regulations of GB201-2000 (China National Standard).
Data of setting time cannot be provided in case that customer requires additive cement.
In addition: We can also provide variaties CA-75E, CA-75G, CA-75A. They are products lying between CA70 and CA80.