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Durability Design Approach and Exposure Conditions in Eurocode, British Standard and ISO 13823 Standards: A Review
(SpringerLink, 2024) Al-Haddad, Diala Basim; Jokhio, Gul Ahmed
Several incidents of early deterioration of reinforced concrete structures have been reported in recent years. Consequently, the critical demand to incorporate durability in the structural design and construction approach has emerged. As a result, durability design provisions in many countries’ standards have gotten increasingly stringent. In the absence of clear standard guidelines for design engineers, insufficient design and failures or an expensive over-design to provide for the worst-case scenario may occur. This paper compares and critically reviews the durability design requirements and provisions in the Eurocode, British standards, and ISO standards and proposes improvements that will contribute to the development of the coming generation of these documents. The review revealed similarities in the durability design approach, exposure conditions, and design requirements in the Eurocode code and British standard, whereas the ISO 13823 approach is different. The studied documents’ durability provisions are comprehensive, detailed, and well-defined. Nevertheless, several provisions require to be revised to avoid misinterpretation by the code practitioners and to ensure an economically conservative durable design.