QatarNational Cement Company
  
Home | Sitemap | Contact

Built on solid foundation
Our Company
Product Information
Financials
Facilities
What is New
Company News
Corporate Governance
Latest Tender
Careers
Contact Us
Overview
  
 
Ordinary Portland Cement
Sulphate Resistant Portland Cement
Hydrated Lime & Calcined Lime
Portland Pulverized Fuel Ash Cement
Washed Sand
Calcium Carbonate
Services - Bulk Tankers Facilities
 
 

 

This is manufactured to comply with BS 4027 -EN 196-1996-(42.5 N class)and equivalent to ASTM. The test results conducted exceed the permitted required strength.

Technical Specification:

Chemical Composition
Description
Requirement
Typical Test Results
Silicon Dioxide (SiO2)
21.28%
Aluminum Oxide (Al2O3)
3.70%
Ferric Oxide (Fe2O3)
4.46%
Calcium Oxide (CaO)
63.55%
Magnesium Oxide (MgO)
5.00* Max.
2.87%
Sulphur Trioxide (SO3)
2.50 Max.
1.82%
Alkalies ( Na2O + 0.658 K2O )
0.34%
Loss on Ignition  (LOI)
3.00 Max.
1.30%
Insoluble Residue (IR)
1.50 Max.
0.52%
Tricalcium Silicate (C3S)
66.70* Min.
74.50%
Dicalcium Silicate (C2S)
Tricalcium Aluminate (C3A)
3.50 Max
2.25%
Tetra Calcium Aluminoferrite (C4AF)
13.58%
CaO/SiO2
2.0* Min
2.99
Chloride (CI)
0.10 Max.
0.011%
Physical Properties
Fineness, (Blaine Air Permiability)
3400 cm2/gm
Soundness (Le Chatelier Expansion)
10.00 Max.
0.50 mm
Compressive Strength
After 2 days ( N/mm2)
10.00 Min.
21.00 N/mm2
After 28 days ( N/mm2)
42.50** Min.
46.00 N/mm2
Initial setting time (Vicat Test)
60.00 Min.
165 minute

 

*Applies to clinker , ** And not exceeding 62.2 

Applications: Suitable for for all type of applications likely to be exposed to high sulphate contents such as in sub soil conditions including Foundations, drainage structure, storage structures.


Packing: Available in standard packing of 50 KG in paper bag, palletized or unpalletized, or in tankers as per requirement of users.

 
Copyrights© 2010- Qatar National Cement Company
Privacy Policy | Disclaimer
Designed & Developed By:IT Department-Qatar National Cement Company