Volume 22, Issue 2 pp. 793-805
TECHNICAL PAPER

Structural health monitoring methods, dispersion of fibers, micro and macro structural properties, sensing, and mechanical properties of self-sensing concrete—A review

Panga Narasimha Reddy

Corresponding Author

Panga Narasimha Reddy

Department of Civil Engineering, National Institute of Technology, Srinagar, Jammu and Kashmir, India

Correspondence

Panga Narasimha Reddy, Department of Civil Engineering, National Institute of Technology, Srinagar, Jammu and Kashmir, India.

Email: [email protected]

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Bode Venkata Kavyateja

Bode Venkata Kavyateja

Department of Civil Engineering, Jawaharlal Nehru Technological University, Anantapuramu, Andhra Pradesh, India

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Bharat Bhushan Jindal

Bharat Bhushan Jindal

School of Civil Engineering, Shri Mata Vaishno Devi University, Jammu and Kashmir, India

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First published: 28 October 2020
Citations: 32
Discussion on this paper must be submitted within two months of the print publication. The discussion will then be published in print, along with the authors’ closure, if any, approximately nine months after the print publication.

Abstract

Self-sensing composites are now becoming extremely attractive for the applications in civil engineering structures in order to enhance the safety and service life. In the new generation carbon nanofibers (CNFs) and nanotubes (CNTs) have shown good electrical, mechanical, and thermal parameters which inspired in the development of innovative nanocomposites with great and multifunctional properties. Among the numerous advances in civil engineering, the introduction of such carbon fibers to cement based materials produces cementitious materials as a smart or self-sensing. Such smart composites reveal a noticeable change in their electrical conductivity with applied stress/strain and this special characteristic makes them helpful for monitoring of structures. However, there are still issues with CNFs and CNTs dispersion in case of cementitious composites, which impede the effective transfer of nanomaterials properties into the composites. Present paper presents a critical review on the dispersion of CNFs and CNTs within cementitious matrices, mechanical and electrical properties for the health monitoring of civil engineering structures.

CONFLICT OF INTEREST

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

DATA AVAILABILITY STATEMENT

The structural concrete journal requires, as a condition for publication, that the data supporting the results in the paper will be peer-reviewed and archived in an appropriate public repository

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