REVIEW ARTICLE


A Review Study of the Mechanical Characteristics of Nano Concrete Reinforced with Hybrid Fiber



Paschal Chimeremeze Chiadighikaobi1, *, Qais Abdulrahman Ali Qais2, Muritala Adedapo Adegoke3, Vladimir Jean Paul2, Lina Abass Saad2, Roaa Hilmi Kadhim Al-Brees2, Babatunde Adegoke Obende1
1 Department of Civil Engineering, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
2 Department of Civil Engineering, RUDN University, 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
3 Network Building and Consulting. 6095 Marshalee Drive, Suite 300, Elkridge, MD 21075, United States


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Creative Commons License
© 2023 Chiadighikaobi et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondende to this author at the Department of Civil Engineering, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria; E-mail: chiadighikaobi.paschalc@abuad.edu.ng


Abstract

Due to poor strength and hardness, low tensile strength, and inadequate cracking resistance, conventional concrete has recently posed a significant barrier to the modernization of the structural sector. To solve these issues, researchers investigated and found ways of implementing nanotechnology in concrete production. Nano concrete can be produced by incorporating nanomaterials in the concrete mix. This concrete type can also be reinforced by incorporating hybrid fibers and nanofibers. This review paper conducted an in-depth study on two types of nanomaterials that could be used in the production of nano concrete. Additionally, hybrid fibers were used to strengthen nano concrete. The objective of this paper was to identify some nanomaterials used in the production of nano concrete. Even though this unique hybrid material has been the subject of several investigations, there have only been a few reviews on its production procedures, effectiveness, and performance of this type of concrete. To identify these nanomaterials, their potential, and their properties, a review method was used to study previous works of some researchers and scientists on related and similar works. Some properties of these nanomaterials were discussed in this paper. Summarizing and concluding the research works of previous authors and this current study, it was found that nano concrete has better properties compared to normal conventional concrete. However, there are some limitations associated with the uses and applications of these nanomaterials in concrete for mass production. By tracking the beginning and spread of cracks, it was discovered that mixing various fiber types into a concrete mix enhances the cementitious matrix's strength qualities. The mechanical and toughness characteristics of fiber-reinforced concrete mixtures may be significantly improved by incorporating composites hybrid fiber composites that utilize the synergistic impact of nano- and micro-additives.

Keywords: Nano concrete, Hybrid fibers, Fiber reinforced concrete, Carbon nanotubes, Nano silica, Sustainability.