Overlay ductal®: A sustainable solution for bridges retrofitting

Author(s): Sébastien Bernardi, Romain Delpont
Paper category: Proceedings
Book title: 1st International Conference on UHPC Materials and Structures
Editor(s): Caijun Shi and Dehui Wang
ISBN: 978-2-35158-164-3
e-ISBN: 978-2-35158-165-O
Publisher: RILEM Publications SARL
Publication year: 2016
Pages: 629-634
Total Pages: 06
Language: English

Abstract: The Chillon Viaduct, built by prestressed box girder segmental construction, was constructed in the late 1960s. Recent examination of structural performance showed that punching of wheel loads through the deck slab is prevailing, though structural safety requirements currently can be fulfilled. Furthermore, the box girder concrete is prone to alkali silica reaction (ASR). The chosen strengthening measure is adding a layer of ultra-high performance fiber reinforced concrete (UHPFRC) additionally reinforced with steel rebars on the top surface of the deck slab, also serving as waterproofing layer. A new 45 mm Ductal® bridge deck delivers an effective response to these challenges.

Online publication: 2016
Publication type : full_text
Public price (Euros): 0.00