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ALUMINITE
Aluminite is a refractory cement specially designed for the manufacture of refractory and insulating mortars and concretes. Aluminite consists of calcium aluminates and alumina-rich minerals, both milled to the size of mircras. As the operating temperature rises, the components are sintered and ceramised, which increases the melting temperature and mechanical strength of Aluminite. In addition, it has a rapid hardening which aids rapid demoulding and/or commissioning.
Additional information
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TECHNICAL CHARACTERISTICS
| Typical values | Specification according to standard and instruction | |
| Clinker(%) |
| Chemicals | ||
| AI2O3 (%) | 40,0 | – |
| CaO (%) | 32,0 | – |
| Total Fe2O3(%) | 18,0 | – |
| SiO2 (%) | 5,5 | – |
| CI (%) | 0,01 | – |
| S2 (%) | 0,02 | – |
| SO3 (%) | 0,1 | – |
| Alkalis (%) | 0,1 | – |
| Physical | ||
| Specific surface Blaine (cm2/g) | 3300 | – |
| Start of setting (min) | 140 | – |
| Final setting (min) | 150 | – |
| Mechanical | ||
| Compression at 6h (MPa) | 45 | – |
| Compression at 24h (MPa) | 65 | – |
| Additional characteristics | |
| Majority mineralogical component | CaAI2O4 |
| Melting temperature | 1295 ºC |
| Laser particle size | Laser D(v,0.9)(μm) less than 90 microns |
| Bulk density (g/cm3) | 1,2 |
| Specific gravity (g/cm3) | 3,2 |
| Precautions |
Follow the procedure for installing refractory concrete, Follow the recommendations for initial heating of refractory concrete, Use refractory aggregates appropriate to the working temperature |
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Expedición y almacenado
Bagged, keep it in closed bags in a cool, dry and ventilated environment, protected from drafts and isolated from the floor and walls., In 25 kg bags, In big bags
Especially recommended for
Refractory concrete and mortar up to temperatures of about 1,300 ºC
Not indicated for
Non-refractory applications or for refractory concretes with working temperatures greater than 1,300 ºC
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