Ordinary Portland Cement

Ordinary Portland Cement is produced by pulverizing clinker consisting essentially of hydraulic calcium silicate and containing one or more forms of calcium sulphate as an inter ground addition.

Assured Compliance With

European Standard	OPC EN 197-1 CEM I 52.5 R
Indian Standard	IS 12269 Grade 53
Pakistani Standard	PS 232/1983(R)

Typical Analysis and Physical Properties

The listed tests below are typical and for information only. Analytical details of the product should be sought in writing from the Lafarfe Cement, Pakistan.

Chemical Analysis

	Typical Results	Standard Requirement EN 197-1 BS 12-1996	Standard Requirement IS 12269
Loss on Ignition %	3.3	5.0% Max	4.0% Max
Insoluble residue %	0.95	0.95% Max	2.0% Max
Sulphate as SO3 %	2.5	4.0% Max	3.0% Max
Chloride %	0.05	0.1% Max	0.1% Max
MG0	2.25	---	6.0% Max
LSF	0.93	---	0.8Min - 1.02% Max
Alkali Equivalent %	0.57	0.60% Max	--
Physical Properties Fitness
Sieve Residue Over 45µm%	9-11	---	---
Fineness by Blaine cm2/g	3200-3000	---	2250
Setting & Soundness Behaviour
Standard Consistency %	27.5
Initial Setting Time (minutes)	180	45 min (Min.)	30 min (Min.)
Final Setting Time (hours)	4:30 h:m	--	600 min (Max.)
Lechatlier's Expansion	1:00 mm	10 (Max.)	10 mm (Max.)
Autoclave Expansion	0.05%	--	0.80% (Max.)

Compressive Strength Performance Mortar EN 196-1 Testing Method

	Typical Results	Standard Requirement EN 197-1 52.5 N BS 12-1996
Early strength – 2days (N/mm2)	22.5	20.0 Min.
Standard Strength – 28days (N/mm2)	56.0	52.5 Min.
	Typical Results	IS 12269 53 grad
3days (N/mm2)	38.0	27.0 Min
7days (N/mm2)	47.0	37.0 Min.
Standard Strength - 8days (N/mm2)	56.0	53.0 Min.

Application

The product has been designed to give enhance concrete properties in the fresh “wet” state with adequate high early strength levels upon setting and hardening.