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Creep behaviour of cracked high performance fibre reinforced concrete beams under flexural load

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posted on 2018-03-26, 09:04 authored by Eduardo Galeote, Ana Blanco-AlvarezAna Blanco-Alvarez, Albert De la Fuente, Sergio Pialarissi-CavalaroSergio Pialarissi-Cavalaro
© RILEM 2017. The investigation on flexural creep of high performance fibre reinforced concrete (HPFRC) is still scarce. Even though the presence of fibres in concrete helps to control the deformations, these may increase under the effect of a sustained load. To analyse the effect of creep in pre-cracked HPFRC elements, twelve beams reinforced with either glass or steel fibres with dimensions 40×80×1200 mm were tested under a three-point configuration. For that, a new type of frame was designed and constructed to test the HPFRC beams under flexural load in a climate-controlled room with constant temperature and relative humidity. The loading mechanism was based on a lever system, applying sustained load ranging between 25 and 50% of the load at which the first crack appeared. The deflection at the mid-span was registered by means of LVDT transducers. Additionally, the influence of the curing procedure (with or without aluminium tape wrap) was assessed. In general, glass fibre reinforced beams presented higher deflections than steel fibres, even though at low load levels the type of fibre did not have significant influence on the deformation.

Funding

The first author also acknowledges the grant FPU provided by the Spanish Ministry of Education, Culture and Sports.

History

School

  • Architecture, Building and Civil Engineering

Published in

RILEM Bookseries

Volume

14

Pages

111 - 123

Citation

GALEOTE, E. ...et al., 2017. Creep behaviour of cracked high performance fibre reinforced concrete beams under flexural load. IN: Serna, P., Llano-Torre, A. and Cavalaro, S.H.P., (eds.) Creep Behaviour in Cracked Sections of Fibre Reinforced Concrete: Proceedings of the International RILEM Workshop FRC-CREEP 2016. New York: Springer, pp. 111-123.

Publisher

Springer (© Rilem)

Version

  • AM (Accepted Manuscript)

Publisher statement

This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/

Publication date

2017

Notes

This is a pre-copyedited version of a contribution published in Creep Behaviour in Cracked Sections of Fibre Reinforced Concrete: Proceedings of the International RILEM Workshop FRC-CREEP 2016 and Pedro Serna, Aitor Llano-Torre and Sergio H.P. Cavalaro (Editors )published by Springer. The definitive authenticated version is available online via https://doi.org/10.1007/978-94-024-1001-3_10

ISBN

9789402410006

ISSN

2211-0844

Book series

RILEM Bookseries;14

Language

  • en

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