Summary
● Pure Calcium Aluminate Cement is a kind of high-class hudraulic cementitious material with high temperature resistance, low water requirement, fast and complete wet hydration, and high early strength.
● Type: CA70, CA80, CA90
Technical Data
Item |
Standard Value |
CA-70 |
CA-80 |
CA-90 |
Chemical Content |
AL2O3 (%) |
68-71 |
78-82 |
88-91 |
CaO (%) |
30 Max |
20 Max |
10 Max |
SiO2 (%) |
0.3 Max |
0.3 Max |
0.3 Max |
Fe2O3 (%) |
0.2 Max |
0.2 Max |
0.2 Max |
Initial Setting Time (min) |
40-120 |
15-90 |
40-150 |
Final Setting Time (min) |
75-180 |
75-150 |
160-240 |
Compressiving Strength (at 24h)(MPa) |
40 Min |
40 Min |
18 Min |
Breaking Strength (at 24h)(MPa) |
6 Min |
6 Min |
2.5 Min |
Refractoriness (oC) |
1700 Min |
1700 Min |
1790 Min |
Note: Setting Time can be adjusted as per customer’s requirement when the order quantity is larger.
Characteristics
● Stable physical performances
● Low water requirement
● Rapid and complete wet hydration
● High early strength
● High temperature resistance
● Long storage life: 6 to 8 months, but in most cases, not more than 1 year
Application
● To make diverse non-shape high-class refractory materials;
● To make low-cement and super-low-cement castable refractories;
● To make high-class free flowing castable, pumping castable, spray castable, etc.
Usage
● Recommended W/C ratio: about 0.2 to 0.3;
● Can be used together with refractory aggregates and admixtures;
● Recommend to use together with Type WRA-2 Water-reducing Admixture.
Transportation Packing and Storage
● Not allow to be affected with damp and mixed with foreign body in storage and transportation;
● Storage:
it should be stored in dry and ventilated environment, and separately from other cement;
● Transportation:
as per the common goods; classification for conveyance - not to be required; not to allow the packages to be fallen down or damaged
● Packing:
25kgs bag, and / or 1MT jumbo bag