TYPE:CA50-G7,CA50-G9,CA50-FUSED,CA70,CA80.
The aluminate cement can resist a high temperature at which a relative high stength still remains its refractoriness increases with the content of CaO,therefore it is suitable for making refractoryconcerte as a bonder,Depending on the refractory aggregates(fireclay,high alumina) used,the refractory concerte made of the cement can be used below 1800 degree.
1. Type:CA50-G7
(1)Chemical Analysis
Al2O3: 51% min. SiO2: 8.0% Max. Fe2O3: 2.5% Max. CaO: 33.0-35.0%
(2) Physical Properties
initial set time: 0:30mins min.
final set time: 6h:00 max
Specific surface area: 300m2/kg min.
flexural strength
1 day 6.5Mpa min.
3 days 7.5Mpa min.
Compressive strength
1 day 50Mpa min.
3 day 60Mpa min
2,TYPE:CA50-G9
(1)Chemical Analysis
Al2O3: 52.0-55.5% SiO2: 6.5% Max. Fe2O3: 2.0% Max. CaO: 33.5-35.5%
(2) Physical Properties
initial set time: 1h:30mins min.
final set time: 6h:00 max
Specific surface area: 400m2/kg min.
flexural strength
1 day 8.0Mpa min.
3 days 10.0Mpa min.
Compressive strength
1 day 70.0Mpa min.
3 day 80.0Mpa min
3. TYPE:CA50-Fused
(1)Chemical Analysis
Al2O3: 50% min. SiO2: 5.5% max. Fe2O3: 2.5% max. CaO: 38.0% max
MgO: 1.0% max. TiO2: 4.0% max. Na2O+K2O 0.5% max
(2) Physical Properties
initial set time: 2h min.
final set time: 8h:00 max
Specific surface area: 400m2/kg min.
flexural strength
1 day 10.0Mpa min.
3 days 11.0Mpa min.
Compressive strength
1 day 75Mpa min.
3 day 80Mpa min
4. TYPE:CA70 (Sintered)
(1)Chemical analysis
Al2O3: 68.0%-70.0% SiO2: 0.3-0.8% Fe2O3: 0.2-0.5% max.
CaO: 28.5-30.5% max
(2) Physical Properties
initial set time: 2hrs min.
final set time: 6h:00 max
Specific surface area: 370-550m2/kg min.
flexural strength
6 hours 3.0% min.
1 day 7.0Mpa min.
3 days 8.0Mpa min.
Compressive strength
6hours 15-30Mpa
1 day 40-45Mpa
3 day 55-70Mpa
5,TYPE:CA80 (Sintered)
(1)Chemical Analysis
Al2O3: 78% min. SiO2: 0.5% max. Fe2O3: 0.5% max. CaO: 19 % max
MgO: 0.5% max.TiO2: 0.3% max. Na2O+K2O: 0.7% max.
(2) Physical Properties
initial set time: 30mins min.
final set time: 6h:00 max
Specific surface area: 650m2/kg min.
flexural strength
1 day 4.0Mpa min. 3 days 5.0Mpa min.
Compressive strength
1 day 30Mpa min. 3 day 35Mpa min
