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<p>This study compares concrete cover design methods in ACI 318 − 19 and EN 1992-1-1:2023. The study takes the design methodologies of both codes, collects independent statistical analysis of 200 design examples, and also considers historical field performance data to create a contrast between ACI’s prescriptive method and Eurocode’s performance-based method. Both ACI and Eurocode effectively manage design methodology for ordinary applications; however substantial differences emerge for aggressive environments and with longer service life intentions. EN 1992-1-1 prescribes thicker cover (42.1 vs. 38.4&#xa0;mm, mean difference 9.6%, <i>p</i> &lt; 0.001) with the most considerable variance occurring in severe exposure conditions. The study substantiates that both design guidelines yield the intended durability objectives, but all methodologies must be followed as primarily prescriptive and performance-based. In summary, the findings will aid an empirically-based decision in selecting a viable design standard for engineering practitioners and certain construction scenarios.</p>

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A comparative analysis of concrete cover design methodologies: ACI 318 − 19 versus EN 1992-1-1:2023

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  • 出版模式：

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  • 发表日期：

    2025年11月27日

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  • Hamdy A. Elgohary

摘要

This study compares concrete cover design methods in ACI 318 − 19 and EN 1992-1-1:2023. The study takes the design methodologies of both codes, collects independent statistical analysis of 200 design examples, and also considers historical field performance data to create a contrast between ACI’s prescriptive method and Eurocode’s performance-based method. Both ACI and Eurocode effectively manage design methodology for ordinary applications; however substantial differences emerge for aggressive environments and with longer service life intentions. EN 1992-1-1 prescribes thicker cover (42.1 vs. 38.4 mm, mean difference 9.6%, p < 0.001) with the most considerable variance occurring in severe exposure conditions. The study substantiates that both design guidelines yield the intended durability objectives, but all methodologies must be followed as primarily prescriptive and performance-based. In summary, the findings will aid an empirically-based decision in selecting a viable design standard for engineering practitioners and certain construction scenarios.