Influence of healing agents and concrete environment on PLA 3D printed mini-vascular networks for self-healing concrete structures

Cazzador, G, De Nardi, Cristina, Ronchin, L and Vavasrori, A 2024. Influence of healing agents and concrete environment on PLA 3D printed mini-vascular networks for self-healing concrete structures. Presented at: Cardiff University Engineering Research Conference 2023, Cardiff, UK, 12-14 July 2023. Published in: Spezi, Emiliano and Bray, Michaela eds. Proceedings of the Cardiff University Engineering Research Conference 2023. Cardiff: Cardiff University Press, pp. 80-83. 10.18573/conf1.t

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Abstract

The aim of this study is to investigate the effect of alkaline environment and healing agents on 3D-printed Poly Lactic Acid (PLA) mini vascular networks (MVNs) for self-healing concrete structures. PLA is an interesting thermoplastic polymer for 3D printing MVNs, due to its good mechanical property and its sustainability. Studies conducted recently on single channel MVNs also known as TETs, and dual channel MVNs, or d-TETs, have indicated that they can effectively store either a single or two-component healing agents to promote the self-healing process in concrete structures. Solubility tests and Differential Scanning Calorimetry (DSC) analysis were conducted in this study to assess the degradation of PLA polymer resulting from various factors, including the printing process, embedment of MVNs in concrete matrices, and prolonged contact with healing agents such as sodium silicate and nanolime solutions.

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Publication
Status:	Published
Schools:	Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) T Technology > TG Bridge engineering T Technology > TH Building construction T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TP Chemical technology T Technology > TS Manufactures
Additional Information:	Contents are extended abstracts of papers, not full papers
Publisher:	Cardiff University Press
ISBN:	978-1-9116-5349-3
Funders:	Leverhulme Trust, Ca’ Foscari University of Venice
Date of First Compliant Deposit:	10 June 2024
Date of Acceptance:	2024
Last Modified:	29 Jul 2024 14:48
URI:	https://orca.cardiff.ac.uk/id/eprint/169684

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