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A combined experimental and numerical approach for estimating the elastic modulus of reinforcement corrosion products is presented. Deformations between steel and mortar were measured using digital image correlation during accelerated corrosion testing at 100 μA/cm2 (~1.16 mm/year). Measured deformations were compared to a numerical corrosion model that considers electrochemical, transport, and mechanical processes, including penetration of corrosion products into a ‘corrosion-accommodating region,’ provided by the mortar’s capillary porosity, directly surrounding the steel. Comparing model and experimental results provides an order-of-magnitude approximation of corrosion product stiffness of 2.0 GPa.
Original languageEnglish
Title of host publicationProceedings of the 6th International Conference on Bridge Maintenance, Safety and Management
Publication date2012
StatePublished

Conference

Conference6th International Conference on Bridge Maintenance, Safety and Management
Number6
CountryItaly
CityStresa, Lake Maggiore
Period08/07/1212/07/12
Internet addresshttp://www.iabmas2012.org/
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