Deteriorated reinforced concrete structures is not something new in the architecture. After a while from the construction finishes, we can see damages that are very bad for the building. Actually these images are bad for construction in general! According to the researches made on this subject, people are making such mistakes for several reasons: low cost of the materials, low knowledge of the engineer, bad working skills of the construction workers, bad analysis of the construction site…
Deteriorated Reinforced Concrete
Reinforced concrete structures deteriorate under attack from external elements. In a composite material such as concrete, there are additional mechanisms caused by the greater complexity of its composition. Of particular concern is the corrosion of the reinforcing steel which is affected by the alkalinity of Portland cement concrete. Portland cement is made by burning constituents which include lime in a kiln and grinding the result to a fine powder. This produces a highly alkaline material which reacts with water and hardens. When it is added to coarse and fine aggregate and mixed with water, the cement combines with the aggregate and hardens to form concrete.
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