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Título

Performance-Based Proposal for Precat Self-Compacting Concrete (SCC) Segments

AutorFernández Luco, Luis; Río, Olga; Castillo, Ángel
Palabras claveself-compacting concrete
tunnel segments
performance-based design
precast production
Fecha de publicación10-jun-2010
SerieECCOMAS
EURO-TUN 2007
ResumenUnder a PB approach, it is possible to produce tailored materials which shoul, perform according to the specified needs. If focus is put on durability issues, the rational procedure would be to state the required life cycle, i.e., number of years of serviceability with no major maintenance work. This paper deals with the design criteria undertaken to the production of a precast element with a predetermined service life of 100 years. The PB approach requires for the specification and quality control procedures to be harmonised and thus, suitable indicators and subindicators of the required performance have to be selectec. The deterioration over time is represented by a service-life model, not discussed in this paper. The requirements for the mix at the fresh state and the effect of the curing regime in a typical precast cycle have not been neglected and thus they contribute to the performance-based re-quirements. Durability design under a PB approach is a significant step forward to extend service life of precast elements, such as tunnel linings.
URIhttp://hdl.handle.net/10261/25172
ISBN978-3-9501554-7-1
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