Refractory Cement

Product
category

CA-50 Bonding Agent Series

CA-70 Binder 

Product
brand

A600

A700

Chemical
composition (%)

SiO2

≤ 7.8

≤ 7.5

≤ 1.0

Al2O3

≥ 50.0

≥ 51.0

≥ 68.0

Fe2O3

≤ 2.5

≤ 2.5

≤ 0.7

R2O

≤ 0.4

≤ 0.4

≤ 0.4

S

≤ 0.1

≤ 0.1

—

Cl

≤ 0.1

≤ 0.1

—

325M sieve
residue (%)

≤ 15

≤ 12

Initial
setting time (min)

≥ 40

≥ 50

≥ 40

Final
setting time (h)

≤ 6

≤ 6

≤ 5

Rupture
Strength

(MPa)

1d

≥ 5.5

≥ 6.0

≥ 5.0

3d

≥ 6.5

≥ 7.5

≥ 6.0

Compressive
Strength (MPa)

1d

≥ 45

≥ 55

≥ 40

3d

≥ 55

≥ 65

≥ 50