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High-alumina cement "CEMBOR"
High-alumina cement "CEMBOR"
Cements of series “CEMBOR” are used for the production of refractory medium-, low- or ultra-low cement concretes
Technical characteristics
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Norm for mark |
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CEMBOR-70 |
CEMBOR-73 |
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ТS 14-194-215-16 |
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Mass fraction, %: |
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Al2O3, no less Fe2O3, no more CaO, no less SiO2, no more |
70 0,4 26 0,8 |
73 0,5 22 0,8 |
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Compressive resistance aged 7 days, N/mm2, no less |
50 |
50 |
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Refractory property, °C, no low |
1600 |
1700 |
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Specific surface area, сm2/g, no less |
4500 |
4500 |
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Setting time: - the beginning, minutes, not earlier - the end, minutes, no later |
90 500 |
120 480 |
Cements are widely used by JSC "BKO" for its own needs in the production of refractory concretes and concrete products.
Cements of series "CEMBOR" is a refractory hydraulically consolidating binding based on synthetical calcium aluminates, the synthesis of which is produced using high-purity raw components, which determine an extremely low impurity components.
Cements of series "CEMBOR" does not contain organic additives (dispersants, deflocculants, etc.) to avoid the risk of undesirable combinations in the chemistry with other elements.