Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:25 m.t.
Supply Capability:2000 m.t./month
Description of High Alumina Refractory Cement
Products | Calcium Aluminate Cement /High Alumina Cement CA-50 |
Applications | 1,As binders calcium aluminates cement are used in concretes and mortars for specialised applications for their properties of resistance to corrosion, abrasion and heat combined with rapid hardening and the ease of controlling grading variations. with new properties are then obtained. In this way, aluminates act as both a complex hydraulic binder and a mineral reagent interacting with the other components in the mix. 2,As reagents, calcium aluminates are found in non-hydraulic systems. This is the case in metallurgical treatments (iron and steel industry, foundry) where specific grades of calcium aluminate are used for their low-temperature melting properties and for trapping molten metal impurities. |
Features | 1,Very low mixing-water requirement |
2,Very high purity | |
3,High product consistency | |
4,High cold and sintered strength | |
5,Very tight specifications of setting times |
product | CA50F | A600 | A700 | A900 | CA50R | ||
Chemical Compositionn (%) | SiO2 | ≤8.0 | ≤7.8 | ≤7.5 | ≤5.5 | ≤7.0 | |
Al2O3 | ≥50.0 | ≥50.0 | ≥51.0 | ≥53.5 | ≥52.0 | ||
Fe2O3 | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ≤2.5 | ||
R2O | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ≤0.4 | ||
S | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ||
Cl | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ≤0.1 | ||
45µm residue (%) | ≤20 | ≤15 | ≤12 | ≤8 | ≤8 | ||
Blaine (m2/kg) | ≥300 | ≥300 | ≥320 | ≥350 | ≥350 | ||
InitialSetting (min) | ≥30 | ≥45 | ≥60 | ≥90 | ≥30 | ||
FinalSetting (h) | ≤6 | ≤6 | ≤6 | ≤6 | ≤6 | ||
Flexural strength (MPa) | 6h | —— | —— | —— | —— | ≥3.0 | |
1d | ≥5.5 | ≥6.0 | ≥6.5 | ≥8.0 | ≥7.0 | ||
3d | ≥6.5 | ≥7.0 | ≥7.5 | ≥10.0 | ≥8.0 | ||
Compressive strength (MPa) | 6h | —— | —— | —— | —— | ≥30 | |
1d | ≥40 | ≥45 | ≥55 | ≥72 | ≥60 | ||
3d | ≥50 | ≥55 | ≥65 | ≥82 | ≥70 | ||
