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Ordinary Portland Cement HIMALAYA OrdinaryPortland Cement No. 425 Specifications Conforming to China Standard GB 175 -92 type PO. MgO 5.0% max SO3 3.5% max LOI 5.0% max Fineness 300 M/Kg Min Setting time Initial setting 45 minutes minimum Final setting 10 hours maximum Soundness pat test shall be passed Commpressive strength 16 mpa (3 days) 42.5 mpa (28 days) Bending strength 3.5 mpa (3 days) 6.5 mpa ( 28 days) OrdinaryPortlandCement No. 525 Specifications Conforming to China National Standard GB 175 - 92 , type PO. MgO 5.0 % Max. SO3 3.5 % Max. L.O.I 5.0 % Max. Fineness 300M/Kg Min Setting Time Initials setting 45 minutes min Final setting 10 hours max Soundness Pat test shall be passed Compressive strength 22 mpa (3 days) 52.5 mpa (28 days) Bending strength 4.0 mpa (3 days) 7.0 mpa (28 days) White Portland Cement Lab Report By CCIB as follows : MgO : 3.05% SO3 : 2.60% Pure : 99.6% Soundness : good Time of setting initial setting : 125Min final setting : 180 Min Compressive strength :(3 days ) : 31.8 Mpa Bending Strength (3 days ): 6.0Mpa Whiteness : 82.2 %
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