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Sustainability
Volume 14
Issue 3
10.3390/su14031775
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Article

Effect of Gasification Char and Recycled Carbon Fibres on the Electrical Impedance of Concrete Exposed to Accelerated Degradation

by
Alessandra Mobili
1,*,
Gloria Cosoli
2,
Nicola Giulietti
3,
Paolo Chiariotti
3,
Giuseppe Pandarese
2,
Tiziano Bellezze
1,
Gian Marco Revel
2 and
Francesca Tittarelli
1,*
1
Department of Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche—INSTM Research Unit, 60131 Ancona, Italy
2
Department of Industrial Engineering and Mathematical Science (DIISM), Università Politecnica delle Marche, 60131 Ancona, Italy
3
Department of Mechanical Engineering, Politecnico di Milano, 20156 Milano, Italy
*
Authors to whom correspondence should be addressed.
Sustainability 2022, 14(3), 1775; https://doi.org/10.3390/su14031775
Submission received: 29 December 2021 / Revised: 31 January 2022 / Accepted: 2 February 2022 / Published: 4 February 2022
(This article belongs to the Special Issue Sustainable Organic Materials Used in the Construction Sector)
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Abstract

This paper aims to evaluate the effect of carbon-based conductive recycled additions, i.e., recycled carbon fibres (RCF) and gasification char (GCH), on the mechanical, electrical, and durability properties of concretes. The obtained results show that the compressive strength of concrete is not affected by conductive additions, whereas electrical impedance, measured according to Wenner’s method, is significantly reduced (6%, 30% and 74% with RCF, GCH, and their combination, respectively) to the advantage of self-sensing properties. As durability is concerned, conductive additions slightly increase capillary water absorption, whereas they decrease chloride ingress through diffusion and do not significantly modify carbonation resistance.
Keywords: concrete; durability; carbon-based additions; char; carbon fibres; capillary water absorption; chloride penetration; carbonation; electrical impedance measurement concrete; durability; carbon-based additions; char; carbon fibres; capillary water absorption; chloride penetration; carbonation; electrical impedance measurement

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MDPI and ACS Style

Mobili, A.; Cosoli, G.; Giulietti, N.; Chiariotti, P.; Pandarese, G.; Bellezze, T.; Revel, G.M.; Tittarelli, F. Effect of Gasification Char and Recycled Carbon Fibres on the Electrical Impedance of Concrete Exposed to Accelerated Degradation. Sustainability 2022, 14, 1775. https://doi.org/10.3390/su14031775

AMA Style

Mobili A, Cosoli G, Giulietti N, Chiariotti P, Pandarese G, Bellezze T, Revel GM, Tittarelli F. Effect of Gasification Char and Recycled Carbon Fibres on the Electrical Impedance of Concrete Exposed to Accelerated Degradation. Sustainability. 2022; 14(3):1775. https://doi.org/10.3390/su14031775

Chicago/Turabian Style

Mobili, Alessandra, Gloria Cosoli, Nicola Giulietti, Paolo Chiariotti, Giuseppe Pandarese, Tiziano Bellezze, Gian Marco Revel, and Francesca Tittarelli. 2022. "Effect of Gasification Char and Recycled Carbon Fibres on the Electrical Impedance of Concrete Exposed to Accelerated Degradation" Sustainability 14, no. 3: 1775. https://doi.org/10.3390/su14031775

APA Style

Mobili, A., Cosoli, G., Giulietti, N., Chiariotti, P., Pandarese, G., Bellezze, T., Revel, G. M., & Tittarelli, F. (2022). Effect of Gasification Char and Recycled Carbon Fibres on the Electrical Impedance of Concrete Exposed to Accelerated Degradation. Sustainability, 14(3), 1775. https://doi.org/10.3390/su14031775

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