Publications

Pro047

Multilevel (four) methodology for durability design



Author(s): C. Andrade
Paper category: Workshop
Book title: International RILEM Workshop on Performance Based Evaluation and Indicators for Concrete Durability
Editor(s): V. Baroghel-Bouny, C. Andrade, R. Torrent, K. Scrivener
ISBN: 978-2-912143-95-2
Pages: 101 - 108
Total Pages: 8
Language: English


Abstract: 
The design of concrete structures is usually made by means of a performance approach based on strength tests carried out following testing conditions agreed by convention. A similar approach should also be followed in the case of durability design regarding reinforcement corrosion. This type of consideration enables the definition of a four level methodology for design against reinforcement corrosion in parallel with that followed for strength design. Levels from I to IV are proposed a) level I has been considered the prescriptive method already given in present codes based on "deemed-to-satisfy" rules, b) level I is that where still not quantification of durability is feasible but the minimum life time is assured through performance based tests or the testing of durability, c) level III has been ascribed to the calculation of aggressive ingress through the square root of the time or more complex models where resistance has to be higher than the environmental action effects and d) level IV includes probabilistic treatments. Finally, the environmental controlling parameters should also be classified in levels.


Online publication: 2007
Publication Type: full_text
Public price (Euros): 0.00