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FLEXURAL POST-CRACKING CREEP BEHAVIOUR OF MACRO-SYNTHETIC AND STEEL FIBER REINFORCED CONCRETE1.pdf (639.05 kB)

Flexural post-cracking creep behaviour of macro-synthetic and steel fiber reinforced concrete

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posted on 2018-03-22, 15:53 authored by Pablo Pujadas, Ana Blanco-AlvarezAna Blanco-Alvarez, Sergio Pialarissi-CavalaroSergio Pialarissi-Cavalaro, Albert De la Fuente, Antonio Aguado
© RILEM 2017. In this paper the post-cracking creep behaviour of FRC beams under flexural load is evaluated in order to determine whether under certain loading conditions plastic fibres may be safely used in the long-term without compromising the serviceability requirements. For that, an experimental program was conducted that involved the testing of 30 beams with dimensions of 150×150×600 mm reinforced either with plastic or steel fibres. The creep test setup consisted in a four-point bending test in previously cracked beams up to crack widths of 0.25, 1.50 and 2.50 mm. The sustained load ranged between 50 and 60% of the cracking load and was applied by means of a lever system. The sustained load was controlled throughout the test with a load cell. The tests were performed under two different environmental conditions during 6 months. Despite the large deformations exhibited by plastic fibres under sustained load over time, their use as reinforcement should not be discarded as long as the effects of creep are considered in the design.

History

School

  • Architecture, Building and Civil Engineering

Published in

RILEM Bookseries

Volume

14

Pages

77 - 87

Citation

PUJADAS, P. ...et al., 2017. Flexural post-cracking creep behaviour of macro-synthetic and steel fiber reinforced concrete. 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. 77-87.

Publisher

@ Rilem. Published by Springer

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_7

ISBN

9789402410006

ISSN

2211-0844

eISSN

2211-0852

Book series

RILEM Bookseries;14

Language

  • en