Quality of the product, as per results of the tests done on the produced cement , from production, grinding of raw-materials, and loading processes, are as the following:

Physical Properties
Property Unit Result Desirable Value
Fineness specific surface cm2/gr 3820 Min. 3000
Soundness autoclave expansion % 0.7 Max. 0.8
Bending strength                     3 days Kg/cm2 58 Min. 20
Bending strength                     7 days Kg/cm2 72 Min. 30
Bending strength                    28 days Kg/cm2 86 Min. 60
Compressive strength            3 days Kg/cm2 405 Min. 110
Compressive strength            7 days Kg/cm2 530 Min. 175
Compressive strength            28 days Kg/cm2 680 Min. 315
Initial setting time Minute 120 Min. 45
Final setting time Minute 185 Max. 480
Whiteness % 90 Min. 75

 

Chemical Properties
Property Unit Result Desirable Value
Silicon Dioxide (SIO2) % 23.7  
Aluminum Oxide (Al2O3)  % 4.3  
Ferric Oxide (Fe2O3)  % 0.35  
Calcium Oxide (CaO) % 66.38  
Magnesium Oxide (MgO) % 0.31 Max. 5.0
      Max. 3.5 C3A>8
Sulfur Trioxide (SO3) % 3 Max. 2.3 C3A<8
Sodium Oxide (Na2O3)  % 0.39  
Potassium Oxide (K2O) % 0.48  
Insoluble Residue (In.R.)  % 0.25 Max. 0.75
Loss On Ignition (L.O.I.)  % 0.9  

As you see, results of the tests are higher than the defined standards. The higher quality of the product has caused many achievements for the company some of them are as the following


     
The cement is produced by our company according to National Iranian Standard (ISIRI) under No. 2931, and ASTM C150 standard.
- Holding certificate of Integrated Management System (IMS),
  covering the standards of:
  - Quality management (ISO 9001-2000)
  - Environmental Management (ISO 14001-2004)
  - Occupational Health and Safety Management
    (OHSAS 18001-1999) from TUV-Nord, Germany
R&D (Research & Development) award from Iran Ministry of Mines & Industries, in 2005
International Star Award for Quality, from BID Co. in Geneva/Switzerland, in 2006, based on the laws and regulations of TQM-QC100.
International Arch of Europe Award, from BID Co. in Frankfurt/Germany, in 2007, based on the laws and regulations of TQM-QC100.
Iranian Green Management Award, in 2007, from secretariat of Iranian Green Management Award, affiliated to the Ministry of Mines & Industries.
Standard (ISIRI) Award as a producer of superior in quality in international standard day in Tehran, October 2008