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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

 

Norm for mark

 

CEMBOR-70

CEMBOR-73

 ТS 14-194-215-16

Mass fraction, %: 

 

 

 

Al2O3, no less

Fe2O3, no more

CaO, no less

SiO2, no more

 

70

0,4

26

0,8

 

73

0,5

22

0,8

Compressive resistance aged 7 days, N/mm2, no less

50

50

Refractory property, °C, no low

1600

1700

Specific surface area, сm2/g, no less

4500

4500

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.

 

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