Temperature and humidity influence on the strain sensing performance of hybrid carbon nanotubes and graphite cement composites
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http://hdl.handle.net/10045/115306
Title: | Temperature and humidity influence on the strain sensing performance of hybrid carbon nanotubes and graphite cement composites |
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Authors: | Moral Delgado, Beatriz del | Baeza, F. Javier | Navarro Martínez, Rosa María | Galao Malo, Oscar | Zornoza, Emilio | Vera, Jose | Farcas, Catalina | Garcés, Pedro |
Research Group/s: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura | Grupo de Ensayo, Simulación y Modelización de Estructuras (GRESMES) |
Center, Department or Service: | Universidad de Alicante. Departamento de Ingeniería Civil |
Keywords: | Cement composites | Multi-walled carbon nanotubes | Graphite | Hybrid fillers | Strain-sensing | Electrical resistivity | Temperature | Moisture |
Knowledge Area: | Mecánica de Medios Contínuos y Teoría de Estructuras | Ingeniería de la Construcción |
Issue Date: | 17-May-2021 |
Publisher: | Elsevier |
Citation: | Construction and Building Materials. 2021, 284: 122786. https://doi.org/10.1016/j.conbuildmat.2021.122786 |
Abstract: | Cement composites with hybrid conductive fillers carbon nanotubes (CNT) and graphite products (GP), have been tested as strain sensors under varying temperatures (0 °C–60 °C), and moisture conditions (0%–100% saturation degree (SD)). Cement pastes with 1% CNT and 5% GP (purified expanded graphite) presented resistivity values between 50 and 75 Ohm·cm, and their strain sensing response was observed to be independent of the loading conditions. However, the gage factor increased up to four times for higher temperatures, and was influenced by the temperature time history. Gage factors were also increased when drying the material up to a SD of 71% or with entirely dried samples. |
Sponsor: | This project has received funding from the European Union’s Horizon 2020 Research and Innovation Programme under grant agreement ID 760940, and from the Generalitat Valenciana grant AICO/2019/050. |
URI: | http://hdl.handle.net/10045/115306 |
ISSN: | 0950-0618 (Print) | 1879-0526 (Online) |
DOI: | 10.1016/j.conbuildmat.2021.122786 |
Language: | eng |
Type: | info:eu-repo/semantics/article |
Rights: | © 2021 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
Peer Review: | si |
Publisher version: | https://doi.org/10.1016/j.conbuildmat.2021.122786 |
Appears in Collections: | Research funded by the EU INV - GRESMES - Artículos de Revistas INV - DMCIA - Artículos de Revistas INV - BIMAEC - Artículos de Revistas |
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