A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Pitfalls and Practical Implications in Durability Design of Reinforced Concrete Structures
Design for durability of infrastructure facilities is becoming increasingly important in view of the large economical impact of premature maintenance and repair. Internationally there is a trend to shift from a prescriptive to a performance-based approach. In scientific literature most attention is devoted to the development of performance criteria for durability by using semi-probabilistic and probabilistic approaches. However, the practical implications, the eventual benefits, if any, the limitations and pitfalls of the mathematical models underlying a performance-based approach are often not addressed. With respect to resistance to chloride ingress a performance-based design approach requires the availability of a simple, cheap and fast test method to quantify the potential performance of a concrete composition. In this paper the chloride migration test being the most commonly used test method will be critically analysed. In addition, experience in practice obtained for “realcrete” has demonstrated a very wide scatter over time of the migration coefficient even for a fixed concrete composition. This experience combined with the serious questions on the overall benefits will make owners, contractors and concrete producers hesitant to implement a performance-based approach for durability design.
Pitfalls and Practical Implications in Durability Design of Reinforced Concrete Structures
Design for durability of infrastructure facilities is becoming increasingly important in view of the large economical impact of premature maintenance and repair. Internationally there is a trend to shift from a prescriptive to a performance-based approach. In scientific literature most attention is devoted to the development of performance criteria for durability by using semi-probabilistic and probabilistic approaches. However, the practical implications, the eventual benefits, if any, the limitations and pitfalls of the mathematical models underlying a performance-based approach are often not addressed. With respect to resistance to chloride ingress a performance-based design approach requires the availability of a simple, cheap and fast test method to quantify the potential performance of a concrete composition. In this paper the chloride migration test being the most commonly used test method will be critically analysed. In addition, experience in practice obtained for “realcrete” has demonstrated a very wide scatter over time of the migration coefficient even for a fixed concrete composition. This experience combined with the serious questions on the overall benefits will make owners, contractors and concrete producers hesitant to implement a performance-based approach for durability design.
Pitfalls and Practical Implications in Durability Design of Reinforced Concrete Structures
Andrade, Carmen (editor) / Gulikers, Joost (editor) / Gulikers, Joost (author)
2011-11-05
10 pages
Article/Chapter (Book)
Electronic Resource
English
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