Shenzhen Chenggong Building Materials Co., Ltd. suppling Ordinary Portland Cement.
Grade: PO52.5.
Specification as per China GB175-2007,
1. Chemical Content
SO3: 3.5% Max
Cl (Chloride) 0.06%Max
MgO: 5.0%Max
Loss On Ignition (LOI): 5.0%Max
2. Physical Performance
Specific Surface Area: 300m2/kg Min
Initial Setting: 45min Min,
Final Setting: 600min Max;
Compressive Strength (MPa, Min):27.0MPa Min(3d), 52.5MPa Min(28d)
Breaking Strength: 5.0MPa Min(3d), 7.0MPa Min(28d)
Packing: 50kg bag and 1MT/or 1.5MT /or 2MT jumbo bag
