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Research Article
Marino Lavorgna
National Research Council
Corresponding Author
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The present study is focused on the development and characterization of innovative cementitious-based composite sensors. In particular, multifunctional cement mortar composites with enhanced functional, piezo-resistive, properties are designed with Multiwall Carbon Nanotube-MWCNTs and reduced Graphene Oxide-rGO dispersed in a natural-rubber latex aqueous dispersion, by exploiting both the concept of confining of the conductive filler in the polymeric phase. The manufactured cement-based composites were characterized by means of Inelastic Neutron Scattering to assess the hydration reactions and the interactions of natural rubber with the hydrated cement phases and by Electron Scanning Microscopy and X-Ray diffraction to evaluate the morphological and mineralogical structure, respectively. Piezo-resistive properties to assess electro-mechanical behavior in strain condition are also measured. The results show that the presence of natural-rubber latex permits to obtain a three-dimensional rGO/MWCNTs segregate structure which catalyzes the formation of hydrated phases of the cement and increases the piezo-resistive sensitivity of mortar composites, representing a reliable approach in developing innovative mortar-based piezoresistive strain sensors.
Keywords
Strain sensors, mortar composites, MWCNT and rGO, piezoresistive properties
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No competing interests reported.
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CURRENT STATUS: Under Review
Version 1
Posted 18 Feb, 2021
No community comments so far
Editorial decision: Major revision
On 14 Jun, 2021
Reviews received
Received 04 May, 2021
Reviews received
Received 27 Apr, 2021
Reviewers agreed
On 27 Apr, 2021
Reviews received
Received 12 Mar, 2021
Reviewers agreed
On 24 Feb, 2021
Reviewers invited
Invitations sent on 20 Feb, 2021
Editor assigned
On 15 Feb, 2021
Editor invited
On 12 Feb, 2021
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On 12 Feb, 2021
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On 11 Feb, 2021
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This preprint is under consideration at Scientific Reports. A preprint is a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Learn more about In Review
Research Article
Marino Lavorgna
National Research Council
Corresponding Author
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
Peer Review Timeline
CURRENT STATUS: Under Review
Version 1
Posted 18 Feb, 2021
No community comments so far
Editorial decision: Major revision
On 14 Jun, 2021
Reviews received
Received 04 May, 2021
Reviews received
Received 27 Apr, 2021
Reviewers agreed
On 27 Apr, 2021
Reviews received
Received 12 Mar, 2021
Reviewers agreed
On 24 Feb, 2021
Reviewers invited
Invitations sent on 20 Feb, 2021
Editor assigned
On 15 Feb, 2021
Editor invited
On 12 Feb, 2021
Submission checks complete
On 12 Feb, 2021
First submitted
On 11 Feb, 2021
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
The present study is focused on the development and characterization of innovative cementitious-based composite sensors. In particular, multifunctional cement mortar composites with enhanced functional, piezo-resistive, properties are designed with Multiwall Carbon Nanotube-MWCNTs and reduced Graphene Oxide-rGO dispersed in a natural-rubber latex aqueous dispersion, by exploiting both the concept of confining of the conductive filler in the polymeric phase. The manufactured cement-based composites were characterized by means of Inelastic Neutron Scattering to assess the hydration reactions and the interactions of natural rubber with the hydrated cement phases and by Electron Scanning Microscopy and X-Ray diffraction to evaluate the morphological and mineralogical structure, respectively. Piezo-resistive properties to assess electro-mechanical behavior in strain condition are also measured. The results show that the presence of natural-rubber latex permits to obtain a three-dimensional rGO/MWCNTs segregate structure which catalyzes the formation of hydrated phases of the cement and increases the piezo-resistive sensitivity of mortar composites, representing a reliable approach in developing innovative mortar-based piezoresistive strain sensors.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
No competing interests reported.
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