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Please use this identifier to cite or link to this item: https://dspace.lboro.ac.uk/2134/32349

Title: Multidirectional double punch test to assess the post-cracking behaviour of FRC
Authors: Pujadas, Pablo
Blanco, Ana
Cavalaro, Sergio H.
De la Fuente, Albert
Aguado, Antonio
Keywords: Multidirectional double punch test
Fiber reinforced concrete
Characterization
Issue Date: 2016
Publisher: RILEM Publications S.A.R.L.
Citation: PUJADAS, P. ...et al., 2016. Multidirectional double punch test to assess the post-cracking behaviour of FRC. IN: Banthia, N., di Prisco, M and Soleimani-Dashtaki, S. (eds.) 9th RILEM International Symposium on Fiber Reinforced Concrete (BEFIB 2016), Vancouver, Canada, Sept 19-21th, pp. 55 - 63.
Abstract: Several authors have shown the direct influence of the orientation of the fibres on the residual strength of the material. From a design-oriented perspective, the anisotropy due to the dispersion and orientation of fibres has to be taken into account when characterizing the mechanical behaviour of the material. However, the wide variety of tests currently used for the characterization of fibre reinforced concrete (FRC) only allow a unidirectional characterization (without considering the orientation of the fibres in the matrix). In order to overcome this drawback, a complete characterization of the fibres orientation together with its structural contribution in the cracked section is required. Considering the above, this paper proposes the use of the double punch test on cubic samples (so called multidirectional double punching test or MDPT test) as an alternative to conventional characterization tests. Due to the specimen shape in a single procedure an estimation of the fibre orientation efficiency can be obtained, establishing a link between the mechanical properties of FRC with the fibre orientation. Thereby, this paper represents a meaningful contribution to provide a step towards the development of a rational and design-oriented constitutive model for real-scale structures.
Description: This is a conference paper.
Sponsor: The authors of this document wish to show their gratitude for the economic support received through the Research Project BIA2010-17478: Construction Processes by means of Fibre Reinforced Concretes.
Version: Accepted for publication
URI: https://dspace.lboro.ac.uk/2134/32349
Publisher Link: This is a conference paper.
Appears in Collections:Conference Papers (Architecture, Building and Civil Engineering)

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