Portland Blastfurnace Cement is recommended for use in following types of construction:

  1. Masonry work
  2. Plastering
  3. Reinforced concrete

Portland Blastfurnace Cement produced by Zeal Pak has the following advantages:

  1. Low cost.
  2. Superior resistance to sea water and sulphate solution.
  3. Denser and more impermeable concrete structure.
  4. Low heat of hydration.
  5. Concrete more resistant to moderately high temperature.

STANDARD SPECIFICATIONS:

DESCRIPTION OF QUALITY

PORTLAND BLASTFURNACE CEMENT

Tests Physical Chemical

British Standard Specification BSS 146 or PSS 1631

Zeal Pak Cement Average Values

Physical Tests

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

 

2250 (Min)
10 mm (max)

 

3120
0.50

Compressive Strength

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

 

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

 

3130
4370
5500

Setting Time

  1. Initial; Minutes
  2. Final; Minutes

 

45 (Min)
600 (Max)

 

138
177

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)
7.00
3.00 (Max)
-
3% (Max)
(as Sulphur 1.5%)

 

-
0.72
0.64
1.74
1.30
-
2.38

  1. Alumina Modulus; A.M.

0.66 (Min)

2.47

 

   

 

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