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Ohorongo CEM II A-LL 42.5N Portland Limestone Cement is a hydraulic binder according to SANS 50197/NAMS 197.

The main component is Portland cement clinker, finely ground together with high quality limestone and calcium sulphate, which controls the setting time of Ohorongo CEM II A-LL 42.5N.

Stringent production control during the entire production process ensures consistent high quality.


Ohorongo CEM II A-LL 42.5N Portland Limestone Cement is designed to meet a strength class 42.5 with a normal early strength “N”.

The “LL” indicates limestone of high quality and “A” represents 6%-20% of mass.


Ohorongo CEM II A-LL 42.5N Portland Limestone Cement can be used in applications where a higher strength class is required.

Typical applications are ready-mix concrete, structural concrete, precast products, small scale brick and block making and shotcrete.

  • Higher range of concrete strengths can be achieved
  • Higher strength class of concrete

Ohorongo CEM II A-LL 42.5N is compatible with commercial chemical admixtures.


Ohorongo Cement is distributed in 50 kg bags, 2 ton bags and bulk tankers. Bulk storage silos should be dry and vapor tight. Cement bags should be protected from moisture and kept dry, preferably off ground by means of pallets or timber, preventing moisture contact. Bags should be stored away from direct sunlight, or should be covered by a roof or sheeting. Stacking should be kept to a maximum of two pallets high to avoid compaction of cement bags at the bottom.

Handling and Safety

Refer to Ohorongo Cement Safety Data Sheet, obtainable from Ohorongo Cement.

Technical Support

OhorongoCement offers technical support from its comprehensively equipped chemical-, cement-, and concrete laboratories. Assistance to cement- as well as concrete aspects, including advice on mix design is available from our qualified technical staff.


Please contact the OhorongoCement Sales Office for price enquiries. Contact details provided below.

If you are a redistibutor of Ohorongo Cement and need high resolution images for your promotional material, files in various formats may be found in the Ohorongo Cement Media Library.

Resources & Tools

Click on the link below to download the informative types of cracks in concrete document.

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Our Contacts

Ohorongo Haus
Schanzenweg 35, Klein Windhoek
P.O. Box 86842, Eros
Tel: +264 61 389 300

Cement Plant
Sargberg Plant, North Otavi
P.O.Box 444, Tsumeb
Tel: +264 67 235 7000

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