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The GÓRKAL 50 cement is a hydraulic binder applied in producing fire resistant concrete and isolation pulps working at 1300-1450°C. It is mainly consisted of calcium aluminate, which gives excellent fire resistant properties. This type of cement is also used in doing repairs by vibration, whipping and rough cast methods.
GÓRKAL 50 is extremely active in a hydraulic sense, it achieves its best mechanical properties after 12 hours since the preparation (about 80% of durability), which has got an important effect on application possibilities.
GÓRKAL 50 cement is widely applied in various industry branches. It is mainly used in:
- the power industry,
- the heating plants,
- the iron and non ferrous metallurgical works,
- the glass and pottery industry,
- the chemical and cement industry.
In the power industry GÓRKAL 50 is used for covering side walls of steam boilers and installations of a furnace chamber.
In the heating plants it is applied to a furnace of heating units.
The technological process production of GÓRKAL 50 is under strict control, which finally ensures the stable chemical composition.
| Chemical element |
Percent contents |
| Al2O3 |
50-52 percent |
| CaO |
36-38 percent |
| SiO2 |
2-3,5 percent |
| Fe2O3 |
7-10 percent |
| Mineralogical composition |
| Basic phase |
calcium monoaluminate CA |
| Companion phases |
calcium dia-aluminate CA2Brownmillerit C4AFmayenit C12A7gelenit C2AS |
| Common fire resistance |
146 sP that is 31 sS |
| Specific gravity |
3,0 g/cm3 |
| Heaped density |
1,1 g/cm3 |
| Specific surface according to Blaine |
3200-3500 cm2/g |
GÓRKAL 50 is extremely active in a hydraulic sense, it achieves its best mechanical properties after 24 hours since the preparation:
- Flexural bending strength after 24 h min. 7,0 MPa,
- Compressive strength after 24 h min. 45 MPa.
| Setting time |
the beginning time from 1.5 to 4 hours,the ending time frorn 5 to 8 hours. |
The high quality of the cement and the proper wrappage allow to store it for three months’ time. In practice, however, it preserves all its properties for half a year.
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COMPANY
GÓRKAL 40
