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refractory cement
refractory cement

Refractory cement high-alumina CA 80 is one of the best-selling products in the world! We have lots of clients in the world.

 Characteristics:

1.quick hardening   2. high temperature resistance   3. short setting time 4. anti-erosion of sulphate

5. anti-freezing  6. good grain shape

Specification

AL-70

AL-75

AL-80

AL-85

 Chemical Composition

Al2O3

%

68-71

74-76

78-82

83-85

CaO

%

‹30

‹24

‹20

‹14

SiO2

%

‹0.3

‹0.3

‹0.3

‹0.3

Fe2O3

%

‹0.2

‹0.2

‹0.2

‹0.2

Fineness

Cm2/g

 › 6000

›6000

›8000

8000-10000

    Physical Properties

  Setting Time

Initial Set

h:min

›0:30

›0:30

›0:30

›0:30

Final Set

h:min

‹2:00

‹2:00

‹2:00

‹2:00

Shock flow value

F30

mm

120-150

120-150

130-140

130-140

Rupture Strength

Keep for 24hrs at 20°C

Mpa

›6

›6

›6

›4

Drying for 24hrs at 110°C

Mpa

›8

›8

›8

›6

Baking at 1100°C and staying warm for 3hrs

Mpa

›10

›10

›10

›8

Compressive Strength

Keep for 24hrs at 20°C

Mpa

›50

›50

›50

›40

Drying for 24hrs at 110°C

Mpa

›70

›70

›70

›60

Baking at 1100°C and staying warm for 3hrs

Mpa

›80

›80

›80

›75

refractory cement

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