The effect of moisture on corrosion of concrete structures and solutions to combat it
الموضوعات :
1 - گروه مهندسی عمران سازه، دانشگاه آزاد اسلامی واحد لاهیجان
الکلمات المفتاحية: Concrete structures, concrete corrosion, microsilica, reinforced concrete,
ملخص المقالة :
With the increase in the world population, especially in developing countries, it has caused an increase in housing density and a decrease in land. Today, construction systems are faced with a shortage of suitable land and have moved towards the banks of rivers and seas in humid provinces, which has caused a problem of moisture in buildings, especially concrete structures. In tidal marine environments, the diffusion of chloride ions into the concrete and the resulting corrosion are usually the main causes of damage and reduced useful life of reinforced concrete structures. In these structures, which are not completely saturated and are constantly affected by the successive wetting and drying processes, the penetration of chlorine ions into the concrete occurs much faster than the net diffusion.In this regard, we have examined many studies on the corrosion of concrete structures with the aim of improving their performance in aqueous environments and observed that the use of microsilica technique is the most effective technique for combating concrete corrosion in wet conditions in concrete structures due to its proper placement in the concrete paste and immobility.
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