FraMCoS 8 2013 Toledo, Spain

Developments of Prediction Model for Crack Width due to Rebar Corrosion

Deterioration of concrete structures has been drawing a greater social attention. The strength of concrete structures decreases due to corrosion of reinforcement. The relationship between the crack width and the amount of reinforcement corrosion (corrosion ratio) is an important parameter…

First page of: Developments of Prediction Model for Crack Width due to Rebar Corrosion
Year 2013
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Abstract

Deterioration of concrete structures has been drawing a greater social attention. The strength of concrete structures decreases due to corrosion of reinforcement. The relationship between the crack width and the amount of reinforcement corrosion (corrosion ratio) is an important parameter in maintenance and management activities of the concrete structures. This paper develops a model of relationship between the crack width and the corrosion ratio. Basic calculation formulation of the expansion pressure, caused by corrosion, was derived using cylinder model. Experimental comparison indicated the proposed model is available to estimate the crack width based on the corrosion ratio of reinforcement due to corrosion.