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Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures
This paper aims to demonstrate the self-protection and self-sensing functionalities of self-compacted concrete (SCC) containing carbon nanotubes (CNT) and carbon microfibers (CMF) in a hybrid system. The ability for self-sensing at room temperature and that of self-protection after thermal fatigue c...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7084940/ https://www.ncbi.nlm.nih.gov/pubmed/32131383 http://dx.doi.org/10.3390/ma13051106 |
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author | Maria Cruz, Alonso Javier, Puentes |
author_facet | Maria Cruz, Alonso Javier, Puentes |
author_sort | Maria Cruz, Alonso |
collection | PubMed |
description | This paper aims to demonstrate the self-protection and self-sensing functionalities of self-compacted concrete (SCC) containing carbon nanotubes (CNT) and carbon microfibers (CMF) in a hybrid system. The ability for self-sensing at room temperature and that of self-protection after thermal fatigue cycles is evaluated. A binder containing a high volume of supplementary mineral additions (30%BFSand20%FA) and different type of aggregates (basalt, limestone, and clinker) are used. The self-diagnosis is assessed measuring electrical resistivity (ER) and piezoresistivity (PZR) in compression mode within the elastic region of the concrete. Thermal fatigue is evaluated with mechanical and crack measurements after heat cycles (290–550 °C). SCC withstands high temperature cycles. The protective effect of the hybrid additive (CNT+CMF) notably diminishes damage by keepinghigher residual strength and lessmicrocracking of the concrete. Significant reductions in ER are detected. The self-diagnosis ability of functionalized SCC isconfirmed with PZR. A content of the hybrid functional additive (CNT+CMF) in the percolation region is recommended to maximize the self-sensing sensitivity. Other parameters as sample geometry, sensor location, power supply, and load level have less influence. |
format | Online Article Text |
id | pubmed-7084940 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70849402020-03-23 Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures Maria Cruz, Alonso Javier, Puentes Materials (Basel) Article This paper aims to demonstrate the self-protection and self-sensing functionalities of self-compacted concrete (SCC) containing carbon nanotubes (CNT) and carbon microfibers (CMF) in a hybrid system. The ability for self-sensing at room temperature and that of self-protection after thermal fatigue cycles is evaluated. A binder containing a high volume of supplementary mineral additions (30%BFSand20%FA) and different type of aggregates (basalt, limestone, and clinker) are used. The self-diagnosis is assessed measuring electrical resistivity (ER) and piezoresistivity (PZR) in compression mode within the elastic region of the concrete. Thermal fatigue is evaluated with mechanical and crack measurements after heat cycles (290–550 °C). SCC withstands high temperature cycles. The protective effect of the hybrid additive (CNT+CMF) notably diminishes damage by keepinghigher residual strength and lessmicrocracking of the concrete. Significant reductions in ER are detected. The self-diagnosis ability of functionalized SCC isconfirmed with PZR. A content of the hybrid functional additive (CNT+CMF) in the percolation region is recommended to maximize the self-sensing sensitivity. Other parameters as sample geometry, sensor location, power supply, and load level have less influence. MDPI 2020-03-02 /pmc/articles/PMC7084940/ /pubmed/32131383 http://dx.doi.org/10.3390/ma13051106 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Maria Cruz, Alonso Javier, Puentes Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title | Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title_full | Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title_fullStr | Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title_full_unstemmed | Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title_short | Self-Compacted Concrete with Self-Protection and Self-Sensing Functionality for Energy Infrastructures |
title_sort | self-compacted concrete with self-protection and self-sensing functionality for energy infrastructures |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7084940/ https://www.ncbi.nlm.nih.gov/pubmed/32131383 http://dx.doi.org/10.3390/ma13051106 |
work_keys_str_mv | AT mariacruzalonso selfcompactedconcretewithselfprotectionandselfsensingfunctionalityforenergyinfrastructures AT javierpuentes selfcompactedconcretewithselfprotectionandselfsensingfunctionalityforenergyinfrastructures |