Type 1-425

Chemical Properties
SiO₂ 21.50 ± 0.8
Al₂O₃ 4.52 ± 0.30
Fe₂O₃ 3.6 ± 0.30
CaO 64.60 ± 0.50
MgO 2.50 ± 0.30
SO₃ (C₃A ≤ 8%) 2.50 ± 0.20
L.O.I 2.50 ± 0.20
IR 0.50 ± 0.10
LSF 92.31 ± 2
SM 2.50 ± 0.1
AM 1.30 ± 0.1
C₃S 59.40 ± 2
C₂S 16.0 ± 2
C₃A 6.3 ± 1
C₄AF 11 ± 2
Free lime 1.2 ± 0.3
Physical Properties
Specific Surface, Blaine (cm²/g) 3000 ± 100
Autoclave % 0.3 ± 0.1
Setting time Initial – not less than (minute) 159 ± 16′
Final – not more than (minute) 230 ± 16′
Compressive strength
(Kg/cm²)
2 days 190 ± 50
7 days
28 days 490 ± 50

Our Products :

  • Should be protected against humidity .
  • Should not be stowed in pile more than 8 bags .
  • Should not be kept in stock more than three months .