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03281 The Investigation on Corrosion Behavior and Protection Methods for Reinforced Concrete Structures in Coasts of Persian Gulf

Picture for 03281 The Investigation on Corrosion Behavior
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Product Number: 51300-03281-SG
ISBN: 03281 2003 CP
Author: Masoud Rezaei Saman Kandi, Hadi Beirami
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The occurrence of corrosion in reinforced concrete in both coastal and dry areas is a universal problem. Environmental conditions along with the existence of corrosive parameters will lead to severe corrosion in the reinforcement. In the Persian Gulf the existence of a corrosive atmosphere along with a salt enriched soil has lead to considerable damage in the concrete structures of the region. The vastness of the region has also added to the cost of damages. These types of corrosion occur through chemical & physical mechanisms. Due to the fact that more than 80% of structural degradation in reinforced concrete is caused by reinforcement corrosion, it is therefore the purpose of this paper to investigate their common degradation mechanisms and protection techniques. The concrete samples have been evaluated for each technique, by performing standard tests such as " Determining the effects of chemical admixtures on the corrosion of embedded steel reinforcement in concrete exposed to chloride environments", and "Length change of hydraulic- cement mortars exposed to a sulfate solution". Results obtained from experiments suggest that application of inhibitors in the concrete mixture is far more effective for prevention of corrosion in the reinforcement and concrete workability enhancement, than other prevention methods. Keywords" Corrosion; Inhibitor, Concrete
The occurrence of corrosion in reinforced concrete in both coastal and dry areas is a universal problem. Environmental conditions along with the existence of corrosive parameters will lead to severe corrosion in the reinforcement. In the Persian Gulf the existence of a corrosive atmosphere along with a salt enriched soil has lead to considerable damage in the concrete structures of the region. The vastness of the region has also added to the cost of damages. These types of corrosion occur through chemical & physical mechanisms. Due to the fact that more than 80% of structural degradation in reinforced concrete is caused by reinforcement corrosion, it is therefore the purpose of this paper to investigate their common degradation mechanisms and protection techniques. The concrete samples have been evaluated for each technique, by performing standard tests such as " Determining the effects of chemical admixtures on the corrosion of embedded steel reinforcement in concrete exposed to chloride environments", and "Length change of hydraulic- cement mortars exposed to a sulfate solution". Results obtained from experiments suggest that application of inhibitors in the concrete mixture is far more effective for prevention of corrosion in the reinforcement and concrete workability enhancement, than other prevention methods. Keywords" Corrosion; Inhibitor, Concrete
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