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CEM I 42.5R is produced at Ohorongo Cement's state-of-the-art manufacturing facility with carefully selected premium raw ingredients for consistent strength, workability and durability to give excellent results every time.
Ohorongo CEM I 42.5R users are assured of a high quality and reliable cement product, which enables users to produce cost effective concrete and concrete products.
Ohorongo’s cement products are proudly 100% Namibian.
Ohorongo CEM I 42.5R is suitable for on-site mixing with extenders such as Fly Ash (FA), ground granulated blast furnace slag (GGBS) and is highly compatible with commercial chemical admixtures, to give extra value and customized mixes.
Freshly mixed concrete
Concrete in the hardened state
Ohorongo CEM I 42.5R complies with the physical and chemical requirements of NAMS 197 & SANS 50197 for a Class CEM I 42.5R cement.
The production process is strictly controlled by the Quality Assurance Department, to ensure consistent quality.
Ohorongo Cement is ISO 14001:2015 certified, confirming its commitment towards sustainability and caring for the environment.
Ohorongo has replaced over 40% of its fossil fuel with locally sourced environmentally friendly fuels such as wood chips and charcoal fines to reduce the carbon footprint of its production process.
Water consumption is minimised by using air for clinker cooling. Advanced filtration systems are installed accross the entire process to limit dust emissions.
Aggregate
Aggregate have a significant influence on strength, quality and durability of concrete, mortar and plaster. We recommend using aggregates from reputable suppliers.
Sand
The sand used should not contain organic material (dung, roots, leaves), nor too much fines / clay, which may lead to loss of strength or excessive water demand.
Water
Quality of water is important! Use clean drinkable water to achieve a workable concrete.
Least amount of water should be used, too much water will result in strength loss of concrete, plaster and mortar.
Curing
After the concrete, mortar and plaster have hardened, keep them moist by spraying with water and covering with light coloured plastic sheeting to prevent evaporation for up to 7 days.
Refer to Ohorongo Cement Safety Data Sheet, obtainable from Ohorongo Cement.
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.
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