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UHPFRC solutions for the retrofit of nuclear reactor containment walls



Author(s): D. Corvez, B. Masson
Paper category: Symposium
Book title: RILEM-fib-AFGC International Symposium on Ultra-High Performance Fibre-Reinforced Concrete
Editor(s): F. Toutlemonde, J. Resplendino
Print ISBN: 978-2-35158-130-8
e-ISBN: 978-2-35158-131-5
Publisher: RILEM Publications S.A.R.L
Pages: 147 – 156
Total Pages: 10
Language: English


Abstract: 
The containment walls of nuclear reactors must obey rigid air tightness criterion when it comes to ensuring the security of the surrounding population in an accident scenario. Tests must be performed regularly in order to verify leakage criterion. At a nuclear facility in France, higher than expected leakage rates, but below criterion, were discovered for some reactors, causing EDF/SEPTEN (Electricité de France/Service d'étude et projets thermique et nucléaire) to set up a research program that would identify robust repair solutions. The leakage rate is always respected but current solutions (by the inner face) must be enhanced, in some cases, to extend the working life of the structure up to 60 years. The use of Ultra-High Performance Fibre Reinforced Concrete (UHPFRC) for the reinforcement and air-tightness of the inner walls is a promising solution. Technological solutions using UHPFRC have been tested extensively and are presented in this paper.


Online publication: 2014
Publication Type: full_text
Public price (Euros): 0.00