Qatar National Cement Company

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Ordinary Portland Cement

Sulphate Resistant Portland Cement

Hydrated Lime & Calcined Lime

Portland Pulverized Fuel Ash Cement

Complying with Qatar Construction Specification

Technical Specification:

Chemical Composition
Description	Requirement
Sulphur Trioxide (SO₃)	0.40% max.
Chloride (CI)	0.06% max.
Specific Gravity	2.6 min
Water Absorption	2.3% max.
Material finer than 75 µm	3.0% max.
Clayish & Friable particles	3.0% max.

Particle Size Distribution
Sieve Size	Zone - 1	Zone - 2	Zone -3
10.0 mm	100	100	100
5.0 mm	90-100	90-100	90-100
2.36 mm	60-95	75-100	85-100
1.18 mm	30-70	55-90	75-100
600 µm	15-34	35-59	60-79
300 µm	5-20	8-30	12-40
150 µm	0-10	0-10	0-10
Mostly falls in Zone -3 Applications : Suitable for Civil construction work, earth filling, cement blocks preparation Packing : Bulk only.


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