Perspectives on the incorporation of self-healing in the design practice of reinforced concrete structures

He, Shan, Sayadi Moghadam, Sina ORCID: https://orcid.org/0000-0003-1961-4021, Patel, Ravi, Schultheiss, Annika, Mihai, Iulia C. ORCID: https://orcid.org/0000-0002-6725-2048, Jefferson, Anthony ORCID: https://orcid.org/0000-0002-2050-2521, Jonkers, Henk M., Luković, Mladena, Schlangen, Erik and Dehn, Frank 2025. Perspectives on the incorporation of self-healing in the design practice of reinforced concrete structures. Structural Concrete 10.1002/suco.202401045

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Abstract

Self-healing concrete, with its ability to autonomously repair damages, holds promise in enhancing its structural durability and resilience. Research on self-healing concrete in the past decade has advanced in understanding the mechanisms behind healing, exploring various healing agents, and assessing their effectiveness in concrete structures. However, the full potential of self-healing concrete remains untapped unless its effects are effectively integrated into the design practices of reinforced concrete structures. Realizing this challenge, this paper synthesizes the current research progress and discusses the possibilities to consider self-healing into design codes. The focus was placed on two specific benefits of applying self-healing concrete: one centered on durability and the other on mechanical performance. Specifically, the effect of self-healing on impeding chloride penetration into cracked reinforced concrete was discussed first. Modifications of parameters in existing predictive models based on different types of healing approaches were recommended. Furthermore, the possible impact of the self-healing capacity in mitigating the stiffness reduction of concrete was also discussed. Equations that can describe the stiffness regained due to healing action are presented. In each part of the case study, limitations and challenges still hindering standardization and wider application in the construction field are discussed.

Item Type:	Article
Date Type:	Published Online
Status:	In Press
Schools:	Schools > Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TH Building construction
Publisher:	Wiley
ISSN:	1464-4177
Funders:	EC
Date of First Compliant Deposit:	10 March 2025
Date of Acceptance:	5 February 2025
Last Modified:	11 Mar 2025 11:45
URI:	https://orca.cardiff.ac.uk/id/eprint/176743

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