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Good reinforced concrete in the Arabian Gulf

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Abstract

The paper gives an overview of materials and procedures necessary to achieve durable concrete in the Gulf Area. Given that hydrated Portland cement is the fundamental element in durability problems, the need for inclusion of other cementitious materials in the mix is discussed. Following a brief mention of special aspects of the Gulf Area, the paper considers the climate and local exposure conditions of individual structures. The rate of progress of various deleterious reactions is discussed. The need for maintenance is stressed and main-tenance procedures are described. Action in response to problems, including decision on repairs, and the competence of investigators are discussed. Causes of deterioration are reviewed. There follows a discussion of the need for appropriate quality of aggregate and mix water, a satisfactory cover to reinforcement and proper curing. In conclusion, it is stressed that every detail from design to the finished structure has to be near-perfect in order to achieve good reinforced concrete in the Gulf Area.

Résumé

L’article présente un aperçu général des matériaux et des méthodes nécessaires à l’obtention d’un béton durable dans la région du Golfe. Étant donné que le ciment Portland hydraté est l’élément fondamental concernant les problèmes de durabilité, la nécssité d’utiliser d’autres matériaux cimentaires dans le béton est discutée. Les aspects particuliers de la région du Golfe sont mentionnés, et le climat et les conditions locales des constructions individuelles sont détaillés. L’évolution de diverses réactions est étudiée. L’accent est mis sur le besoin d’entretien et les méthodes convenables sont décrites. L’article fait état des actions à mener face aux différents problèmes, incluant la décision des réparations, et de la compétence des investigateurs. Les causes de la détérioration sont examinées. Il s’ensuit un débat sur la nécessité d’une bonne qualité de l’agrégat et de l’eau de gâchage, d’une couverture satisfaisante de l’armature ainsi que d’une cure adéquate. L’article conclut que tous les détails, depuis la conception jusqu’à la fin de la construction, doivent être proches de la perfection si l’on veut obtenir un béton armé de bonne qualité dans la région du Golfe.

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References

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Adam Neville is a Member of the Board of Advisers of RILEM’s Scientific Committee.

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Neville, A. Good reinforced concrete in the Arabian Gulf. Mat. Struct. 33, 655–664 (2000). https://doi.org/10.1007/BF02480605

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  • DOI: https://doi.org/10.1007/BF02480605

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