Physicomechanical Properties of Carbon Nanotubes Reinforced Cementitious Concrete – A Review

Paschal Chimeremeze Chiadighikaobi1, 3, *
, Abbas Abdulhussein Abd Noor2, Vladimir Jean Paul3, Alexey Semenovich Markovich3, Lina Abass Saad3, Desmond Enyia Ewa4, Stephen Kayode Aderomose1
1 Department of Civil Engineering, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
2 Department of Civil Engineering, Al Muthanna University, Samawah, Iraq
3 Department of Civil Engineering, RUDN University, 6 Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
4 Department of Civil Engineering, Cross River University of Technology, Calabar, Cross-River State, Nigeria

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© 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: This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Department of Civil Engineering, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria; E-mail:


Though concrete is one of the most widely used construction materials, there are some concerns and shortcomings associated with it. Cementitious materials' quasi-brittle behavior, which leads to cracking and a loss of durability, is a major concern in structural applications. In this review, the latest research on reinforcing cementitious concrete with carbon nanotubes (CNTs) is reviewed, with an emphasis on the material's structural performance in building and a comparison of CNTs to other reinforcing fibers. The improvement of the macro mechanical properties of carbon nanotube-reinforced composite structures has been discussed in the form of functionally graded carbon nanotubes reinforced composites (FG-CNTRC). Several researches have, in the past, used other forms of reinforcements to enhance the properties of concrete till the implementation of nanotechnology in concrete production by incorporating CNTs into the concrete mixes. Concrete's crucial mechanical properties as a structural material and the durability of conventional cement-based building materials can both be improved by CNTs. They have drawn a lot of interest because they are an engineering material with a wide range of uses. The creation and characterization of cement-based materials reinforced with CNTs have been studied by researchers. Comparisons between the effects of CNT and other fibers on concrete have also been made. This concrete reinforcement type's environmental impact and sustainability have also been discussed. According to studies, CNT can greatly enhance the performance of cement-based materials.

Keywords: Carbon nanotube, Concrete reinforcement, Dispersed reinforcement, Concrete, Cementitious materials, Composite materials, Nanotechnology.