Zeal Pak’s Ordinary Portland Cement can be used for all type of civil construction works and is considered as the best cement due to its following advantages:

  1. It has less setting time and high early strength.
  2. It possesses consistent high quality due to better homogenization of raw mix done by wet process.
  3. It has unique attractive light grey color.
  4. It has very low linear expansion.

STANDARD SPECIFICATIONS:

DESCRIPTION OF QUALITY

ORDINARY PORTLAND CEMENT

Tests Physical Chemical

British Standard Specification BSS 12-1958 or PSS 232-1983

Zeal Pak Cement Average Values

Physical Tests

  1. Fineness, Sq Cm/gm
  2. Expansion, m.m.

 

2250 (Min)
10 mm (max)

 

2980
0.50

Compressive Strength

  1. 3 Days; psi
  2. 7 Days; psi
  3. 28 Days; psi

 

2200 (Min)
3400 (Min)
5000 (Min)

 

3840
4980
5800

Setting Time

  1. Initial; Minutes
  2. Final; Minutes

 

45 (Min)
600 (Max)

 

130
160

Chemical Tests

  1. Lime Saturation
  2. Factor; LSF
  3. Insoluble Residue; I.R.%
  4. Magnesia; Mg0%
  5. Loss on Ignition; L.O.I.%
  6. Sulphuric
  7.  Anhydride; SO3%

 

 

-
0.66 to 1.02
1.50 (Max)
4.00 (Max)
3.00 (Max)
-
2.50% (Max) if
C3A<7%
3.0% (Max) if
C3A>7%

 

-
0.90
0.54
1.37
1.12
-
2.31%

 

  1. Alumina Modulus; A.M.

0.66 (Min)

2.06

 

   

 

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