WHITE CEMENT 

A state of the art plant with technology from Babcock-Grenzebach Germany is installed at kohat. KOHAT SUPER WHITE CEMENT is the product of unique decolourizing process, which prevents oxidation of iron in the clinker and maximizes whiteness.

High refractive index and opacity of KOHAT SUPER WHITE CEMENT impart a brilliant luster and smooth finish, even when mixed with pigments. It also mixes easily with inorganic pigments which do not fade in sunshine and alkaline attack.

The comprehensive strength of KOHAT SUPER WHITE CEMENT is at par or more than the strength of Ordinary Portland Cement. Therefore it can conveniently be used in place of grey cement in all kinds of concrete and mortar mix.

KOHAT SUPER WHITE CEMENT complies with following standards:

1.         PS 1630- 1984
2.         ENV 1 97-1 &2CEM I, CLASS 42.5 N

Test Physical/Chemical

Pakistan Standards

PS 1630-1984

EN 197- I & 2

(Formerly
BS 12)

Kohat Super White

Physical Tests

Fineness Sqcm/gm

2,250 (Minimum)

4,300 - 4,500

Soundness (mm)

10 (Maximum)

10 (Maximum)

1 -2

Setting time (Minutes)

Initial

45 (Minimum)

60

110 - 130

Final

600 (Maximum)

-

130 - 200

Compressive Strength PSI (Mpa)

2 Days

-

≥1450(10)

2900 ≥ 20

3 Days

1,740(12.0)
(Minimum)

-

3,625 ≥ 25

7 Days

2,760(19.0)
(Minimum)

-

4,350 ≥ 30

28 Days

-

≥6160 (42.5)

6,525 ≥ 45

RY

Lab

Chemical Tests

Lime Saturation Factor (LSF)

0.66 - 1.02

-

0.90 - 0.93

Magnesium Oxide (MgO) %

3.0 (Maximum)

≤3.5

1.0 - 1.4

Sulphuric anhydride (SO₃) %

1.5 (Maximum)

≤5.0

2.5 - 2.8

Insoluble residue
(I.R) %

3 (Maximum)

≤5.0

0.2 - 0.3