Abrasion Resistance of Concrete – Design, Construction and Case Study

One of the most common forms of deterioration imposed on concrete structures is surface abrasion. This mechanical wearing can be a catalyst for other forms of deterioration such as cracking and corrosion of reinforcing steel. This report is intended to discuss three aspects of abrasion. Firstly, the common sources and mechanics of the abrasion of concrete have been identified. Secondly, a literature review has been presented identifying the material aspects and construction methods that impact the abrasion resistance of concrete, including compressive strength, water to cementitious materials ratio, type and size of aggregates, supplementary cementitious materials, chemical admixtures, and curing and finishing practices. Recommendations for specifying and designing concrete mixes, as well as suggested finishing practices that improve abrasion resistance are provided. Finally, a case study has been presented on the ice shield design of Confederation Bridge in Canada, the longest bridge in the world over ice covered water, showcasing how engineers handled the abrasion of concrete in their designs