ORDINARY
PORTLAND CEMENT
We now have a
Contract available. Minimum order is 12,500 MT.
Specifications
 Conforming
to China National Standard (GB175-72 PO)
Magnesium Oxide (MGO) 5.0% Max (6.0% Max while
soundness is checked by Autoclave Expansion Test)
Sulphur Trioxide (SO3) - 3.5% Maximum
Loss on Ignition (L.O.I.) - 3.5% Maximum
Fineness Residue over Sieve 80 I -
10.0% Maximum
Setting Time - Initial Setting
Minimum 45 minutes
Final Setting Time - Maximum 10 hours
Strength: Various types of Cement are
classified according to its
.Strength Grade as follows:
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Type & Grade |
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3 days |
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28 days |
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3 days |
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28 days |
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P. O. Cement 525 |
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26.0 |
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52.5 |
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5.0 |
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7.0 |
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P. O. Cement 425 |
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21.0 |
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42.5 |
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4.0 |
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6.5 |
Chemical
Composition
Mgo (%) <=5.0
So3 (%) <=3.5
Loss on Ignition (%) <=3.5  Insoluble Residue (%) <=1.5
Physical Test
Fineness: Air
permeability >=300M2/kg Soundness:
Good
Vicat Test Initial
Set >=45 minutes Final Set <=390
minutes
Compressive
Strength (Mpa): 3 days >=23.0 28
days >=52.5
Bending Strength
(Mpa): 3 days >=4.0 28 days >=7.0
Please send your
LOI & Banking information for a quote
We now have Clinker available also !!
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