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INTRODUCTION Concrete bleeding, also known as water gain, is a form of segregation in which some of the water in the concrete mix tends to rise to the surface of the freshly placed concrete....
Worldwide, ASR leads to various forms of structural damage and is one of the main processes which affect the durability of concrete structures, reducing the service life of these structures and ...
Compiled By Martha Mwatile Concrete is the most widely used construction material in the world, due to the various benefits it offers in both the fresh and hardened states. It is a composite...
OHORONGO CEMENT CEM II B-LL 32.5N CLEAN WATER (To Mix) LATEX GLOVES (To Fill With Cement Mixture) A BOWL OR VASE (To Provide The Shape) BUCKET (For Mixing) FLAT ITEM WITH A BIT OF WEIGHT LIKE A HARD COVER BOOK (For Molding The Base Of Your ...
Compiled By Martha Mwatile Concreting in adverse weather conditions such as hot weather, cold weather and windy conditions presents a unique set of challenges, which must be thoroughly plann...
An admixture is a material other than cement, supplementary cementatious material, water, aggregate and fibre reinforcement that is used as an ingredient of concrete, and is added to the batch i...
Ohorongo shows you step by step how to pour a concrete slab using Ohorongo Cement.
Are you familiar with the entire cement making process? This video will explain the entire process in detail.
In this video we are going to demonstrate procedures on manufacturing high quality bricks at home! Follow our step by step video. Click on the link below to download the Ohorongo Brickmaking Academy booklet for information on: Crash-course in cement indicators;...
Plastic shrinkage is the reduction in concrete volume which occurs when water is removed from compacted concrete before it sets. Water can be removed from plastic concrete (concrete which has no...
CEM I 42.5R Used by Brickmakers due to the high early strength. Also used for “special blended mixes’’ where other cementitious additives should be added to obtain prescribed properties. CEM II B-LL 32.5N Used by retailers, small construction co...
The strength of concrete is generally measured by testing concrete cubes which are prepared from the concrete used in that particular construction. The cube strength of concrete is specifi ed by...
If the product comes into contact with the eyes, immediately wash out thoroughly with water and medical advise should be sought. Always wear protective clothing to prevent skin irritation or caustic burning, which may result from prolonged contact with cement. ...
If the product comes into contact with the eyes, immediately wash out thoroughly with water and medical advise should be sought. Always wear protective clothing to prevent skin irritation or caustic burning, which may result from prolonged contact with cement. ...
If the product comes into contact with the eyes, immediately wash out thoroughly with water and medical advise should be sought. Always wear protective clothing to prevent skin irritation or caustic burning, which may result from prolonged contact with cement. ...
If the product comes into contact with the eyes, immediately wash out thoroughly with water and medical advise should be sought. Always wear protective clothing to prevent skin irritation or caustic burning, which may result from prolonged contact with cement. ...
This is a schematic presentation of the whole cement manufacturing process. Raw materials such as limestone, shale and marl are collected at the quarry and transported to the crush...
Honeycombing is a term used to describe the hollow spaces and cavities; or the rough, pitted appearance on the concrete surface or inside the concrete mass, resulting from the mortar not adequat...
Click on the link below to download the informative types of cracks in concrete document.
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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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...
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
