1-Grey Cement

Specifications (Meeting European Standard Specifications (EN 1-197 /2004) and American Standard Specifications (ASTM C150/2007 Type I):

CEM I 42.5 N CEM I 32.5 N
USES Used in all types of construction, which need high early compressive strength, such as bridges, tunnels, prefabricated floor, and precast concrete. Used in all concrete construction such as reinforced buildings, water tanks, roads, and any other building works, which are not subjected to sulphate effect. It also can be used in relevant industries of the construction, as hollow and solid blocks, tiles and railway line concrete supports
MgO 1.2% - 1.6%
SO3 2.5% - 3% SO3 2.5% - 3% SO3
Chloride 0.02% - 0.04% Cl 0.02% - 0.04% Cl
LOSS ON IGNITION 1% - 1.5 % 2% - 3%
INSOLUBLE RESIDUE 0.30% - 0.5% 0.4% - 0.7%
SURFACE AREA (BLAINE) 3200 - 3300 3100 - 3300
SOUNDNESS 0 - 1 mm 0 -1 mm
COMPRESSIVE STRENGTH
2 DAYS 18 - 23 N/mm2 15 -19 N/mm2
7 DAYS 30 - 35 N/mm2 24 - 27 N/mm2
28 DAYS 44 - 48 N/mm2 34 - 38 N/mm2
INITIAL SETTING TIME 140 - 180 minutes 130 - 170 minutes

2-Grey Clinker

OPC Clinker with specification: ES 4756-1/2013 and standard: EN 197-1/2011

Item Symbol Typical Standard Requirement Unit
Silicon Oxide SiO2 21.34 -- %
Aluminum Oxide Al2O3 4.86 -- %
Ferric Oxide Fe2O3 4.40 -- %
Calcium Oxide CaO 64.51 -- %
Magnesium Oxide MgO 2.77 <5 %
Sulphate SO3 1.14 -- %
Potassium Oxide K2O 0.21 -- %
Sodium Oxide Na2O 0.51 -- %
Chloride Cl 0.02 -- %
Loss On Ignition L.O.I. 0.22 -- %
Moisture H2O 0.10 -- %
Free Lime F. L. 1.61 -- %
Lime Saturation Factor (LSF ) 94.13 -- Ratio
Silica Modulus (SM) 2.31 -- Ratio
Alumina Modulus (AM) 1.11 -- Ratio

3-WHITE CEMENT (CEM I 52.5 N, CEM I 52.5 R, and CEM II/B-LL 42.5 N)

Specifications (Meeting EN 197 European Specifications):

CEM I 52.5 N CEM I 52.5 R CEM II/B-LL 42.5 N
MgO 0.23 % MgO
SO3 2.8 % SO3 2.2 % SO3 1.9 % SO3
Cl 0.065 % Cl 0.09 % Cl 0.055 % Cl
LOSS ON IGNITION 3.6 % LOSS ON IGNITION 4.0 % LOSS ON IGNITION 11.9 % LOSS ON IGNITION
INSOLUBLE RESIDUE 0.30 % INSOLUBLE RESIDUE 0.21 %INSOLUBLE RESIDUE 0.28 % INSOLUBLE RESIDUE
FINENESS (BLAINE) 420 m2/kg FINENESS (BLAINE) 527 m2/kg FINENESS (BLAINE)
SOUNDNESS 1.1 mm SOUNDNESS 3.0 mm SOUNDNESS 1.6 mm SOUNDNESS
COMPRESSIVE STRENGTH
2 DAYS 30.9 MPa - 2 DAYS 33-34 MPa- 2 DAYS 20 MPa- 2 DAYS
28 DAYS 68.0 MPa - 28 DAYS 67.0 MPa- 28 DAYS 45.5 MPa- 28 DAYS
INITIAL SETTING TIME 138 minutes 195 minutes 149 minutes
REFLECTANCE (Ry) 87% Ry 87% Ry 87.3 % Ry
WATER SOLUBLE Cr CONTENT less than 2 mg/kg less than 2 mg/kg less than 2 mg/kg

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