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CEM I 42,5 R

An early strength Portland cement that is particularly suitable for civil engineering, building applications, precast, ready-mixed concrete and concrete products, when early demoulding of formwork is required.

CEM I 42,5 R conforms to the requirements of ELOT EN 197-1. It is a certified cement by an independent body and carries a CE Mark.



CEM I 42,5 R is recommended to:


Produce early strength in a wide variety of concretes.

Facilitate the demoulding, handling and use of all types of concrete products.

Help maintain normal concrete production during cold weather.



Grey in color

Consistent strength meeting all the conformity criteria in ΕLΟΤ EN 197-1.

Compatible with admixtures.

Trial mixes are recommended to determine the optimum mix proportions.

Does not contain any added cementitious material.



CEM I 42,5 R is available in bulk throughout Greece.



This product in bulk should be stored in sealed silo.


Conditions of Use

Concrete classes containing CEM I 42,5 R must be appropriately specified according with the applied standards and used correctly for best performance and cost optimization.

The cement content must be correct and the water/cement ratio as low as possible consistent with satisfactory placing, thorough compaction and effective curing.

The final finish quality of this material will depend upon the operative having the required skills and familiarisation with the materials and its application methods.

CEM I 42,5 R is manufactured from natural products and slight shade variations may occur.


Technical Support

Further information or specification advice on CEM I 42,5 R and the full range of Heracles cements can be obtained through the contacts listed.


Health and Safety

Contact between cement powder and body fluids (like sweat) may cause irritation, dermatitis or burns. Cement is classified as an irritant under the Chemicals (Hazard Information and Packaging Regulations).

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Enhanced Cements

Heracles GCCo, pioneer in the differentiation of cement products in the Greek market, offers to the market the new enhanced reactivity cement series HeraclesTM Ενισχυμένο and BasisTM Ενισχυμένο. Driven by innovation for the development of materials and solutions for the construction sector, Heracles has implemented, for the first time in Greece, the innovative technology of separate grinding in the cement production. 

Industrial ecology

How to create value from waste

Large amounts of natural resources, particularly minerals and fossil fuels, are used to manufacture cement. For many years the Group has been working to reduce the environmental impact of its activities by finding ways to obtain value from waste products.

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