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Refractory CA-80 cement
Refractory CA-80 cement

Grained, fireproof, good raw material for refractory products

 Characteristics:

1. quick hardening and short setting time

2. quick strengthening

3.  high temperature resistance

4. good grain shape

5. anti-freezing

6. anti-erosion of sulphate

 

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 CA-80 cement

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