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Abstract

Concrete is produced by mixing together cement, water and aggregates (i. e. sand and coarse aggregates) in specified proportions. It can do well with compressive forces but it is very weak under tensile forces. To overcome this problem, steel reinforcement are normally added to produce reinforced concrete which can also withstand tensile forces. Experience shows that environmental conditions may have a negative impact on the durability of reinforced concrete structures resulting in development of defects if not properly assessed and appropriate measures adopted to arrest the same at the design and construction stages.

The severity of damages for the investigated reinforced concrete structures at the University of Dar es Salaam depended on the influence of the environmental conditions and the quality of concrete. Corrosion to the reinforcement was mainly associated with the influence of the environmental conditions including carbonation, action of sulphates and to a small extent chlorides due to contaminated humid air.

Publisher Name

University of Dar es Salaam

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