CEM IV/A (P) 42.5 SR

Sulphate-Resistant Portland Pozzolanic Cement

CEM IV/A (P) 42.5 SR is a sulphate-resistant cement specifically designed for concrete structures exposed to high levels of sulphates in soil or groundwater. It is manufactured by grinding clinker with gypsum to meet the requirements of Egyptian Standard ES 4756-1:2022 and European Standard EN 197-1:2011. Its sulphate resistance is primarily due to its low tri-calcium aluminate (C₃A) content.​​

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Standards & Compliance:

Manufactured in accordance with:

- Egyptian Standard: ES 4756-1:2022

- European Standard: EN 197-1:2011

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Physical Properties:​

Property                                                                                   Specification Limit

Initial Setting Time                                                                       ≥ 60 minutes             

Soundness (Expansion)                                                              ≤ 10 mm                    

Compressive Strength at 2 Days                                                 ≥ 10 MPa                  

Compressive Strength at 28 Days                                               ≥ 42.5 MPa               

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​Chemical Properties:​

Component                                                                                 Maximum Limit 

Sulphate (SO3)                                                                               ≤ 3.0%                

Chloride Content (Cl⁻)                                                                     ≤ 0.1%                

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Target Market:

- Ready-mix concrete producers

- General construction contractors

- Precast concrete manufacturers

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Applications:

Recommended for concrete works in aggressive environments with high sulphate exposure, including:

- Foundations in sulphate-rich soils

- Sewage treatment plants

- Precast sewage water pipes and manholes

- Infrastructure in groundwater-prone areas

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Packaging Options:

- 50 kg bags

- Big bags

- Bulk delivery​