Stiffness degradation of concrete members induced by reinforcement corrosion

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Corrosion of steel reinforcement is the major cause of deterioration of reinforced concrete structures exposed to coastal and marine environments. In Australia, corrosion-related repair and rehabilitation costs about $13 billion annually. Research carried out to date on the effects of corrosion in concrete structures has not considered the effects of sustained loads and shrinkage on corrosion and the deterioration of member stiffness with time. This project will develop a new theoretical basis to characterise corrosion effects on the in-service behaviour of concrete structures, essential for adequate assessment of durability of existing structures and for the safe design of new structures.