Cardiff University | Prifysgol Caerdydd ORCA
Online Research @ Cardiff 
WelshClear Cookie - decide language by browser settings

Non-destructive evaluation of ductile-porous versus brittle 3D printed vascular networks in self-healing concrete

Shields, Yasmina, Tsangouri, Eleni, De Nardi, Cristina, Assunção Godinho, Jose Ricardo, Antonaci, Author Paola, Palmer, Palmer, Al-Tabbaa, Abir, Jefferson, Anthony ORCID:, De Belie, Nele and Van Tittelboom, Author Kim 2024. Non-destructive evaluation of ductile-porous versus brittle 3D printed vascular networks in self-healing concrete. Cement and Concrete Composites 145 , 105333. 10.1016/j.cemconcomp.2023.105333
Item availability restricted.

[thumbnail of 1-s2.0-S0958946523004079-main (1).pdf] PDF - Accepted Post-Print Version
Restricted to Repository staff only until 12 October 2024 due to copyright restrictions.

Download (1MB) | Request a copy


Additive manufacturing (AM) can produce complex vascular network configurations, yet limited testing has been done to characterize the damage and healing behavior of concrete with embedded networks for self-healing. In this study, different AM methods and network wall materials were used to produce vascular networks for self-healing concrete prisms, where their load-response behavior, healing efficiency and microstructure were evaluated using non-destructive techniques: acoustic emission (AE), ultrasonic pulse velocity (UPV), digital image correlation (DIC), and X -ray computed tomography (CT). The types of healing agent release mechanisms that were studied include a ductile-porous network that supplies fluid from its pores and a brittle network that fractures under load to release fluid. DIC coupled with AE verified debonding of ductile-porous networks from the cementitious matrix, and was able to track damage progression as well as healing for all networks with load regains up to 56 % and stiffness regains up to 91 % using polyurethane.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Publisher: Elsevier
ISSN: 0958-9465
Funders: European Union's Horizon 2020, Marie Skłodowska-Curie grant agreement no. 860006., European Union's Horizon 2020 no. 101005611, Leverhulme Trust ECF-2022-235.
Date of First Compliant Deposit: 18 October 2023
Date of Acceptance: 12 October 2023
Last Modified: 15 Nov 2023 22:06

Actions (repository staff only)

Edit Item Edit Item


Downloads per month over past year

View more statistics