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Types of cracks in concrete

Types of cracks in concrete

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

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Proper concrete curing

Proper concrete curing

Proper concrete curing is achieved when appropriate moisture & temperature conditions are maintained to permit continuation of the hydration reaction.   Click on the link b...

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Cracking of hardened concrete

Cracking of hardened concrete

When working with concrete, the ease of placement is of great importance, and therefore adequate workability and consolidation of concrete often results in more water being added than needed for...

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Understanding early age concrete cracking

Understanding early age concrete cracking

Causes of cracking It has long been recognized that the main reason for concrete cracking or delamination in reinforced concrete structures is due to the stresses caused by restrained shrink...

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Storing of cement bags with Ohorongo Cement

Storing of cement bags with Ohorongo Cement

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, preferabl...

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The Sunshine Club visits Ohorongo Cement

The Sunshine Club, a Television Program aired on NBC, recently took a closer look at Otavi and Namibia’s only cement producing plan – Ohorongo Cement. Construction of the Ohorongo Cement Plant started in 2009 with first production in 2011, making Ohorongo one of...

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Concrete Properties

Concrete Properties

The sub-processes of mixing, transport, moulding and compaction determine the key requirements for the concrete mix and fresh concrete. Workability is not defined in physical terms and canno...

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Casting Concrete at high temperatures

Casting concrete at high temperatures causes early setting, shorter workability and reduction of final strength of the product. Casting, compaction and surface treatment must be executed as fast as possible. Aside of the high temperature, also low relative air humidity (und...

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About Us

Ohorongo (Pty) Ltd. is one of the first of Namibia's cement manufacturers and owns one of the most modern cement plants in Africa. It was constructed over the course of two years by leading international engine...

Our Contacts

Ohorongo Windhoek Office
11 Van Der Bijl Street, Northern Industrial Area, 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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