Drougkas, A orcid.org/0000-0002-8647-9993, Sarhosis, V, Basheer, M et al. (2 more authors) (2023) Electromechanical Testing of Smart Lime Mortars for Structural Health Monitoring. In: Lecture Notes in Civil Engineering. 10th European Workshop on Structural Health Monitoring, 04-07 Jul 2022, Palermo, Italy. Springer , Cham, Switzerland , pp. 755-763. ISBN 978-3-031-07253-6
Abstract
Masonry structures are characterised by low tensile strength and limited ductility. Excessive static or high-cyclic loading or seismic excitation can lead to large localised strains and cracking. It is therefore essential to monitor the response of masonry structures to external loading, especially in the case of historic buildings and infrastructure. The present work aims at designing novel smart intervention materials for multifunctional application in historic masonry structures as a means of SHM, simultaneously structurally and chemically compatible with the in-situ material. The materials investigated consist of lime mortars mixed with different conductive micro- and nanofillers dispersed in the binder. Smartness stems from the materials’ enhanced piezoresistivity, namely the constitutive relation between strain and electrical resistivity. Through application as a repointing agent in existing structures, these materials can be used as deformation and damage sensors. Electromechanical testing employing cyclic compression was conducted on mortars with different doping levels of three conductive fillers: graphite powder, carbon nanotubes and carbon microfibres. The electromechanical study involved the determination of the piezoresistive gauge factors of the different mixes for determining the optimal doping level for each employed filler. The mortars were evaluated in terms of piezoresistive sensitivity and structural application scalability.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2023 The Author(s), under exclusive license to Springer Nature Switzerland AG. This is an author produced version of a conference paper published in European Workshop on Structural Health Monitoring, Lecture Notes in Civil Engineering, vol 253. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | Lime mortar, Carbon nanotubes, Carbon microfibres, Graphite, Smart materials, Piezoresistivity |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EU - European Union 101023384 |
Depositing User: | Symplectic Publications |
Date Deposited: | 21 Mar 2022 15:08 |
Last Modified: | 28 Mar 2025 12:50 |
Published Version: | https://link.springer.com/chapter/10.1007/978-3-03... |
Status: | Published |
Publisher: | Springer |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:184941 |