dor_id: 4129237

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336.#.#.3: Artículo de Investigación

336.#.#.a: Artículo

351.#.#.6: https://jart.icat.unam.mx/index.php/jart

351.#.#.b: Journal of Applied Research and Technology

351.#.#.a: Artículos

harvesting_group: RevistasUNAM

270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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856.4.0.u: https://jart.icat.unam.mx/index.php/jart/article/view/1024/830

100.1.#.a: Adili, Ehsan; Kheyroddin, Ali

524.#.#.a: Adili, Ehsan, et al. (2021). Fiber Interfacial Transition Zone Concept for Steel Fiber-Reinforced Concrete by SEM Observation. Journal of Applied Research and Technology; Vol. 19 Núm. 4, 2021; 294-307. Recuperado de https://repositorio.unam.mx/contenidos/4129237

245.1.0.a: Fiber Interfacial Transition Zone Concept for Steel Fiber-Reinforced Concrete by SEM Observation

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias Aplicadas y Tecnología, UNAM

264.#.0.c: 2021

264.#.1.c: 2021-08-24

653.#.#.a: SFRC; FITZ; Microstructure; Crack; ITZ

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico gabriel.ascanio@icat.unam.mx

884.#.#.k: https://jart.icat.unam.mx/index.php/jart/article/view/1024

001.#.#.#: 074.oai:ojs2.localhost:article/1024

041.#.7.h: eng

520.3.#.a: Fiber-reinforced concrete (FRC), which has become quite popular in recent years, improves many of concrete’s mechanical properties. It uses fibers discretely and is utilized in different structures. This paper proposes, between steel fibers and concrete, a fiber interfacial transition zone (FITZ) which is the most vulnerable part of steel FRC (SFRC) because it has a high cracking and microcracking potential due to fiber-concrete separation. In the prepared specimens, steel fibers were added to concrete in hooked and twisted forms, the SFRC microstructure was studied in both cases under a scanning electron microscope (SEM), and the related images were compared as secondary electron (SE) images. The SEM analysis showed highly precise images of the cracks and their microstructures in the FITZ and lab results show that the newly defined FITZ illustrates the cracking patterns well for both fiber types. Because twisted fibers have cracking angles and larger contact surfaces, the concrete-fiber bond is increased and the related crack widths decrease considerably. A comparison of the crack widths showed that those in the FITZ of specimens with twisted fibers decreased by a factor of approximately seven compared to those with hooked fibers.

773.1.#.t: Journal of Applied Research and Technology; Vol. 19 Núm. 4 (2021); 294-307

773.1.#.o: https://jart.icat.unam.mx/index.php/jart

022.#.#.a: ISSN electrónico: 2448-6736; ISSN: 1665-6423

310.#.#.a: Bimestral

300.#.#.a: Páginas: 294-307

264.#.1.b: Instituto de Ciencias Aplicadas y Tecnología, UNAM

doi: https://doi.org/10.22201/icat.24486736e.2021.19.4.1024

harvesting_date: 2023-11-08 13:10:00.0

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file_creator: Yolanda G.G.

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last_modified: 2024-03-19 14:00:00

license_url: https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es

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Artículo

Fiber Interfacial Transition Zone Concept for Steel Fiber-Reinforced Concrete by SEM Observation

Adili, Ehsan; Kheyroddin, Ali

Instituto de Ciencias Aplicadas y Tecnología, UNAM, publicado en Journal of Applied Research and Technology, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Adili, Ehsan, et al. (2021). Fiber Interfacial Transition Zone Concept for Steel Fiber-Reinforced Concrete by SEM Observation. Journal of Applied Research and Technology; Vol. 19 Núm. 4, 2021; 294-307. Recuperado de https://repositorio.unam.mx/contenidos/4129237

Descripción del recurso

Autor(es)
Adili, Ehsan; Kheyroddin, Ali
Tipo
Artículo de Investigación
Área del conocimiento
Ingenierías
Título
Fiber Interfacial Transition Zone Concept for Steel Fiber-Reinforced Concrete by SEM Observation
Fecha
2021-08-24
Resumen
Fiber-reinforced concrete (FRC), which has become quite popular in recent years, improves many of concrete’s mechanical properties. It uses fibers discretely and is utilized in different structures. This paper proposes, between steel fibers and concrete, a fiber interfacial transition zone (FITZ) which is the most vulnerable part of steel FRC (SFRC) because it has a high cracking and microcracking potential due to fiber-concrete separation. In the prepared specimens, steel fibers were added to concrete in hooked and twisted forms, the SFRC microstructure was studied in both cases under a scanning electron microscope (SEM), and the related images were compared as secondary electron (SE) images. The SEM analysis showed highly precise images of the cracks and their microstructures in the FITZ and lab results show that the newly defined FITZ illustrates the cracking patterns well for both fiber types. Because twisted fibers have cracking angles and larger contact surfaces, the concrete-fiber bond is increased and the related crack widths decrease considerably. A comparison of the crack widths showed that those in the FITZ of specimens with twisted fibers decreased by a factor of approximately seven compared to those with hooked fibers.
Tema
SFRC; FITZ; Microstructure; Crack; ITZ
Idioma
eng
ISSN
ISSN electrónico: 2448-6736; ISSN: 1665-6423

Enlaces