Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions

This paper is aimed at investigating the self-sensing properties of Portland-free alkali-activated binders doped with carbon-based nanofillers. Four different inclusions (carbon nanotubes, carbon nanofibers, carbon black and graphene nanoplatelets) were added into the matrix in the same amount. The...

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Main Authors:	Antonella D’Alessandro, Denny Coffetti, Elena Crotti, Luigi Coppola, Andrea Meoni, Filippo Ubertini
Format:	Article
Language:	English
Published:	MDPI AG 2020-11-01
Series:	Sustainability
Subjects:	alkali-activated materials nanofillers carbon inclusions self-monitoring conductive materials
Online Access:	https://www.mdpi.com/2071-1050/12/23/9916

id	doaj-e0bd4eac674246e080e9a8d84d9ec768
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spelling	doaj-e0bd4eac674246e080e9a8d84d9ec7682020-11-29T10:32:39ZengMDPI AGSustainability2071-10502020-11-01129916991610.3390/su12239916Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based NanoinclusionsAntonella D’Alessandro0Denny Coffetti1Elena Crotti2Luigi Coppola3Andrea Meoni4Filippo Ubertini5Department of Civil and Environmental Engineering, University of Perugia, 06123 Perugia, ItalyDepartment of Engineering and Applied Sciences, University of Bergamo, 24129 Bergamo, ItalyDepartment of Engineering and Applied Sciences, University of Bergamo, 24129 Bergamo, ItalyDepartment of Engineering and Applied Sciences, University of Bergamo, 24129 Bergamo, ItalyDepartment of Civil and Environmental Engineering, University of Perugia, 06123 Perugia, ItalyDepartment of Civil and Environmental Engineering, University of Perugia, 06123 Perugia, ItalyThis paper is aimed at investigating the self-sensing properties of Portland-free alkali-activated binders doped with carbon-based nanofillers. Four different inclusions (carbon nanotubes, carbon nanofibers, carbon black and graphene nanoplatelets) were added into the matrix in the same amount. The physical and electromechanical properties were analyzed. The self-sensing capabilities of the samples were tested by applying a square wave voltage signal and measuring the variation of electrical resistance during cyclical compression tests. The results showed that the presence of nano-inclusions enhanced the sensing behavior of the materials, especially regarding the linearity and the hysteresis performances. Such results appear promising for the application of such novel and innovative nano-modified composites in the field of monitoring structures and infrastructures.https://www.mdpi.com/2071-1050/12/23/9916alkali-activated materialsnanofillerscarbon inclusionsself-monitoringconductive materials
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Antonella D’Alessandro Denny Coffetti Elena Crotti Luigi Coppola Andrea Meoni Filippo Ubertini
spellingShingle	Antonella D’Alessandro Denny Coffetti Elena Crotti Luigi Coppola Andrea Meoni Filippo Ubertini Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions Sustainability alkali-activated materials nanofillers carbon inclusions self-monitoring conductive materials
author_facet	Antonella D’Alessandro Denny Coffetti Elena Crotti Luigi Coppola Andrea Meoni Filippo Ubertini
author_sort	Antonella D’Alessandro
title	Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions
title_short	Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions
title_full	Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions
title_fullStr	Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions
title_full_unstemmed	Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions
title_sort	self-sensing properties of green alkali-activated binders with carbon-based nanoinclusions
publisher	MDPI AG
series	Sustainability
issn	2071-1050
publishDate	2020-11-01
description	This paper is aimed at investigating the self-sensing properties of Portland-free alkali-activated binders doped with carbon-based nanofillers. Four different inclusions (carbon nanotubes, carbon nanofibers, carbon black and graphene nanoplatelets) were added into the matrix in the same amount. The physical and electromechanical properties were analyzed. The self-sensing capabilities of the samples were tested by applying a square wave voltage signal and measuring the variation of electrical resistance during cyclical compression tests. The results showed that the presence of nano-inclusions enhanced the sensing behavior of the materials, especially regarding the linearity and the hysteresis performances. Such results appear promising for the application of such novel and innovative nano-modified composites in the field of monitoring structures and infrastructures.
topic	alkali-activated materials nanofillers carbon inclusions self-monitoring conductive materials
url	https://www.mdpi.com/2071-1050/12/23/9916
work_keys_str_mv	AT antonelladalessandro selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions AT dennycoffetti selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions AT elenacrotti selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions AT luigicoppola selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions AT andreameoni selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions AT filippoubertini selfsensingpropertiesofgreenalkaliactivatedbinderswithcarbonbasednanoinclusions
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Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions

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