Distribution and orientation of steel fibres in steel fibre reinforced concrete

Conference paper

Ige, O, Barnett, S, Nassif, A and Williams, J (2016). Distribution and orientation of steel fibres in steel fibre reinforced concrete. Fouth International Conference on Advances in Civil, Structural and Construction Engineering - CSCE 2016. Institute of Research Engineers and Doctors. https://doi.org/10.15224/978-1-63248-101-6-10

Publication dates
Authors	Ige, O, Barnett, S, Nassif, A and Williams, J
Type	Conference paper
Abstract	The use of fibres to reinforce brittle materials for better performance has been employed since time immemorial. Therefore, inclusion of steel fibres in concrete has always improved the post-cracking strength and concrete ductility to a large extent while full potential of steel fibre reinforced concrete (SFRC) is still yet to be exploited in practice. This study investigated the effects of fibre type, dosage and maximum aggregate size on distribution and orientation and hence, the flexural performance of steel fibre reinforced concrete. Hooked-end steel fibres with 50 mm and 60 mm length, aspect ratio of 45, 65 and 80, and dosages of 0 kg/m³, 25 kg/m³, 40 kg/m³, 50 kg/m³ and 60 kg/m³ were used with maximum sizes of coarse aggregate of 10mm and 20mm. X-ray Computed Tomography was employed for imaging cores taken from the slab specimens after testing. The experimental results show a remarkable improvements in flexural strength up to 83% observed at larger dosage of steel fibre and when good interaction leading to better distribution and orientation of fibres within concrete matrix is sustained between right fibre geometry and appropriately sized aggregate.
Keywords	Concrete; Flexural properties; Steel fibres; Aggregate size; Fibre distribution and orientation
Year	2016
Journal	Fouth International Conference on Advances in Civil, Structural and Construction Engineering - CSCE 2016
Publisher	Institute of Research Engineers and Doctors
Digital Object Identifier (DOI)	https://doi.org/10.15224/978-1-63248-101-6-10
Publisher's version	File Access Level Open
Accepted author manuscript	IRED PAPER.pdf
Print	19 Aug 2016
Online	19 Aug 2016
Publication process dates
Accepted	19 Jul 2016
Deposited	13 Mar 2020
ISBN	9781632481016

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