1. Refractory Cement (Aluminate Cement )
Aluminate cement is produced by bauxite and limestone. The raw materials are calcined in rotary klin and grinding the clinker, and the content of Al2O3 is 50-60%.
| Items |
Unit |
CA-50-G5 |
CA-50-G6 |
CA-50-G7 |
CA-50-G9 |
| Al2O3 |
% |
50.00 min |
50.00 min |
50.00 min |
51.00 min |
| CaO |
% |
33.00 min |
33.00 min |
33.00 min |
33.00 min |
| SiO2 |
% |
9.00 max |
9.00 max |
9.00 max |
8.00 max |
| Fe2O3 |
% |
3.00 max |
3.00 max |
3.00 max |
3.00 max |
| TiO2 |
% |
3.00 max |
3.00 max |
3.00 max |
3.00 max |
| Specific Surface Area |
cm2/g |
3000 min |
3000 min |
3000 min |
4000 min |
| Beginning Set |
min |
30 min |
30 min |
30 min |
90 min |
| Ending Set |
hour |
6 max |
6 max |
6 max |
6 max |
| Bending Strength (1 day) |
Mpa |
5.50 min |
6.00 min |
7.00 min |
8.50 min |
| (3 day) |
Mpa |
6.50 min |
7.00 min |
8.00 min |
10.00 min |
| Compressive Strength (1 day) |
Mpa |
40.00 min |
45.00 min |
50.00 min |
70.00 min |
| (3 day) |
Mpa |
50.00 min |
55.00 min |
60.00 min |
80.00 min |
Packing: 25Kgs bag in 1MT big bag or in 1MT big bag
2. Refractory Cement (High Aluminate Cement )
CA-70 or CA-80 is a pure calcium aluminate cement with alumina content of approx 70% or 80%. Firstly the clinker is produced by melting selected industrial aluminium oxide and fine limestone under strict mineralogical control in rotary kilns. After cooling, the surface area is approx 6000cm2/g or 7000 cm2/g after crushed by ball mills.
| Items |
Unit |
CA-70 |
CA-80 |
| Al2O3 |
% |
68.5-71.5 |
78.5-81.0 |
| CaO |
% |
26.5-30.5 |
17.0-20.0 |
| SiO2 |
% |
0.50 max |
0.50 max |
| Fe2O3 |
% |
0.50 max |
0.50 max |
| K2O+Na2O |
% |
-- |
-- |
| Specific Surface Area |
cm2/g |
5500 min |
7000 min |
| Beginning Set |
min |
45 min |
15 min |
| Ending Set |
hours |
6 max |
6 max |
| Bending Strength (24h) |
Mpa |
5.0 min |
4.0 min |
| Compressive Strength (24h) |
Mpa |
40.0 min |
35.0 min |
Packing: 25Kgs bag in 1MT big bag or in 1MT big bag