2026-04-19T14:07:26Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/113852026-02-18T01:05:50Zcom_10259_4809com_10259_5086com_10259_2604col_10259_4810

Rojas, Guillem a4d181a0-5948-4a74-a3c3-21421872d1b0 500 Mena Alonso, Álvaro 721 600 0000-0002-4269-5299 Muñoz, Álvaro 14f2cc3f-ba61-436e-8123-556a434b81d5 500 Kanstad, Terje acbf0108-0bd6-4957-b9bf-1e34755690f4 500 Vicente Cabrera, Miguel Ángel 574 600 0000-0002-9425-6087 2026-02-17T13:31:20Z 2026-02-17T13:31:20Z 2025-09 1359-5997 https://hdl.handle.net/10259/11385 10.1617/s11527-025-02784-w 1871-6873 This paper proposes a reliable and comprehensive procedure for the assessment of steel fibre distribution in fibre reinforced concrete. Two techniques have been used: computed tomography (CT) scanning and inductive testing. Both techniques have been applied to study the distribution of steel fibres in specimens extracted from structural elements, carrying out a comparative analysis of the results. Firstly, the data from the CT-scanning and the inductive method have been processed to obtain the density of steel fibres and their orientation in all the specimens, before comparing the results. Then, a complementary study was carried out to validate the inductive method, using hand-made cylinders with a previously known fibre dosage and orientation. Finally, the dual energy CT technique was applied and some conclusions about its potential were discussed. Both methods exhibited comparable accuracy and precision in measuring fibre density and orientation. Considering that CT-scanning is the reference technique, this mutual agreement reinforces the reliability of the inductive method. Additionally, the authors employed the dual energy CT aiming to explore the potential of this novel technique within the domain of fibre reinforced concrete research. This work is part of the ‘Fibercon’ industrial research project, led by Dr.techn. Olav Olsen AS and funded by the Norwegian Research Council (Project Number: 327710 - IPNÆRINGSLIV21 Innovasjonsprosjekt i næringslivet). Likewise, part of this work has received financial support from the Spanish Ministerio de Ciencia, Innovación y Universidades (Grant no. PID2023-147971OB-C33). application/pdf eng Springer Materials and Structures. 2025, V. 58, 259 https://doi.org/10.1617/s11527-025-02784-w Atribución 4.0 Internacional http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess Fibre reinforced concrete Inductive method CT-scanning Fibre orientation Quality control Dual energy Estructuras de hormigón armado Reinforced concrete construction Experimental study of the fibre distribution in SFRC: a comparison between CT-scanning techniques and the inductive method info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Materials and Structures 58 8 THUMBNAIL Rojas-ms_2025.pdf.jpg Rojas-ms_2025.pdf.jpg IM Thumbnail image/jpeg 4621 https://riubu.ubu.es/bitstream/10259/11385/4/Rojas-ms_2025.pdf.jpg 780b29ab378d6be26d55e333c7715466 MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/11385/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 908 https://riubu.ubu.es/bitstream/10259/11385/2/license_rdf 0175ea4a2d4caec4bbcc37e300941108 MD5 2 ORIGINAL Rojas-ms_2025.pdf Rojas-ms_2025.pdf application/pdf 4835306 https://riubu.ubu.es/bitstream/10259/11385/1/Rojas-ms_2025.pdf ae94af50b465103644d651e84775da7a MD5 1 10259/11385 oai:riubu.ubu.es:10259/11385 2026-02-18 02:05:50.261 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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