Precast structural elements made of UHPC

Author(s) : J. L. Vitek, D. Citek, R. Coufal
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: 115 - 124
Total Pages : 10
Language : English

Abstract: Prestressed segmental hollow core slabs made of UHPFRC represent an effective structural system. The experimental research has been conducted in order to investigate their structural performances and the possibility of their production. A prototype 2 m long and 1.5 m wide was tested. Additional tests on material were also carried out. The segments of the hollow core slab were cast in vertical position which resulted in an excellent quality of the surface and easy production, because the formwork of longitudinal openings may be easily pulled out in a short time after casting. The distribution of fibres is influenced by the casting method of the elements. Most of fibres tend to be in horizontal position during casting process. Additional bending tests on strips cut from slabs cast in horizontal and vertical positions also showed that the performance of individual strips may be significantly variable. It can be concluded that the casting method is important and it should be taken into account when designing the technology of production.

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

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