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Bridge abutments are commonly built with a construction technology called Mechanically Stabilized Earth that provides structural soundness. The core element is a composite material that alternates layers of backfill soil with layers of galvanized steel reinforcements. Although the structural design has been well developed since its introduction in the construction practices, the degradation of the reinforcements due to corrosion has not been considered in detail and it is a major failure mechanism. A numerical model of the three-stage corrosion process of galvanized steel in Mechanically Stabilized Earth has been developed. The model considers variations in properties of the soil such as temperature, oxygen availability and salts content. However, field data from several bridges in British Columbia is about to be collected with the Ministry of Transportation and Infrastructure. The information gathered will be used to calibrate the model to its most realistic prediction capability so it gives reliable estimations that can be used for risk assessment of the structures.
Dr. Akram Alfantazi
Claudia Aide Soriano Vazquez
Atlantic Industries Limited
Engineering - other
Construction and infrastructure
University of British Columbia
Accelerate
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