New systems of precast bridge decks made with ultra-high performance fibre-reinforced concrete

Author(s) : J.P. Charron, S. Verger-Lebeouf, F. Lachance, B. Massicotte
Paper category : Proceedings
Book title : UHPFRC 2017 Designing and Building with UHPFRC: New large-scale implementations, recent technical advances, experience and standards
Editor(s) : F. Toutlemonde & J. ResplendinoT.Ch.
Print-ISBN : 978-2-35158-166-7
e-ISBN : 978-2-35158-167-4
Publisher : RILEM Publications SARL
Publication year : 2017
Pages: 645 - 654
Total Pages : 10
Language : English

Abstract: This research project aimed to develop various precast bridge slabs including ultra-high performances fiber reinforced concrete (UHPFRC), and a UHPFRC field-cast connection adapted for these precast slabs. Phase 1 of the project provided three innovative bridge slab designs: a reference slab made of high performances concrete (HPC), a hybrid slab incorporating high and ultra-high performances fiber reinforced concrete (HPFRC and UHPFRC), and a UHPFRC slab. Test conducted in laboratory demonstrated that slabs made with UHPFRC fulfilled easily requirements of crack openings and ultimate strength specified in the CSA Bridge Code. The UHPFRC field-cast connection developed in Phase 2 of the project was combined with precast slabs developed in Phase 1 and tested in laboratory. The tests confirmed that HPC slabs linked with the UHPFRC connection provided similar maximum crack openings, stiffness and ultimate strength as the equivalent cast-in-place HPC slab. Moreover, utilization of the UHPFRC connection between precast hybrid slabs provided smaller crack width and superior ultimate strength than specifications of the CSA Bridge Code.

Online publication : 2017
Publication type : full_text
Public price (Euros) : 0.00

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