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Commodity Clinker


Use of commodity clinker: 

 

Used in the production of various types of premium general purpose Portland cement, sulphate resisting cement, moderate heat of hydration cement, etc.

 

Implementation Standard:

GB/T 21372-2008《Portland Cement Clinker》

 

National standard requirements for commodity clinker:

Quality Index f-CaO
(%)
MgO
(%)
LOI
(%)
IR
(%)
SO3
(%)
C3S+C2S
(%)
CaO/SiO2
Mass Ratio
Setting Time
(min)
Compressive
Strength

(MPa)
Soundness
Initial Final 3d 28d
Portland Cement Clinker ≤1.5 ≤5.0 ≤1.5 ≤0.75 ≤1.5 ≥66.0 ≥2.0 ≥45 ≤390 ≥26.0 ≥52.5 Qualified