2026-04-17T19:06:24Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/101272025-02-01T01:05:38Zcom_10259_4809com_10259_5086com_10259_2604col_10259_4810

Ríos, José D. 4e5267ef-8912-40c7-a6e9-08cab1e6854e 500 Mínguez Algarra, Jesús 369 600 0000-0003-0569-5131 Martínez de la Concha, Antonio cbda0b19-4c7b-4efc-bbbf-e6c19b0588bb Vicente Cabrera, Miguel Ángel 574 600 0000-0002-9425-6087 Cifuentes, Héctor 6cde4a76-6a9b-44f9-9be4-6dd9bb714ea8 2025-01-31T12:39:01Z 2025-01-31T12:39:01Z 2020-11 0950-0618 http://hdl.handle.net/10259/10127 10.1016/j.conbuildmat.2020.120499 This paper analyses the influence of the presence of polypropylene fibres in the microstructure of a high-strength self-compacting concrete by X-ray computed tomography and its consequences on the mechanical and fracture properties. The addition of PP fibres alters the pore structure of the concrete matrix, and this affects the macroscopic response (i.e., mechanical and fracture behaviour). A microstructural analysis of an unreinforced concrete, used as reference mix, and two polypropylene fibre-reinforced mixes with two fibre length (6 and 24 mm) were experimentally carried out. Complementary, a comprehensive experimental study of the mechanical and fracture properties of each concrete were performed. Finally, it was established a correlation between the microscopic response (pore morphology and pore distribution) and the macroscopic behaviour of high-strength self-compacting concrete. os autores desean agradecer el apoyo financiero brindado a este estudio por el Ministerio de Economía y Competitividad de España bajo los proyectos BIA2016-75431-R, PID2019-110928RB-C32, PID2019-110928RB-C33 y el VI Plan Propio de Investigación de la Universidad de Sevilla. application/pdf eng Elsevier Construction and Building Materials. 2020, V. 261, 120499 https://doi.org/10.1016/j.conbuildmat.2020.120499 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess High-strength concrete Polypropylene Fracture mechanic X-ray computed tomography Microstructure Materiales de construcción Resistencia de materiales Building materials Strength of materials Microstructural analyses of the addition of PP fibres on the fracture properties of high-strength self-compacting concrete by X-ray computed tomography info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Construction and Building Materials 261 120499 THUMBNAIL Rios-cbm_2020.pdf.jpg Rios-cbm_2020.pdf.jpg IM Thumbnail image/jpeg 4556 https://riubu.ubu.es/bitstream/10259/10127/4/Rios-cbm_2020.pdf.jpg ce5a060f10515f86f23c9a4ca27e87fd MD5 4 LICENSE license.txt license.txt text/plain; charset=utf-8 999 https://riubu.ubu.es/bitstream/10259/10127/3/license.txt b295bcbce42e2caabeb0c623d3860c06 MD5 3 CC-LICENSE license_rdf license_rdf application/rdf+xml; charset=utf-8 805 https://riubu.ubu.es/bitstream/10259/10127/2/license_rdf 4460e5956bc1d1639be9ae6146a50347 MD5 2 ORIGINAL Rios-cbm_2020.pdf Rios-cbm_2020.pdf application/pdf 4437822 https://riubu.ubu.es/bitstream/10259/10127/1/Rios-cbm_2020.pdf d8ceefd1d1ba8db2d2b3b50a76141e5f MD5 1 10259/10127 oai:riubu.ubu.es:10259/10127 2025-02-01 02:05:38.11 Repositorio Institucional de la Universidad de Burgos bubrep@ubu.es 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