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- Title
Self-Sensing Properties of Green Alkali-Activated Binders with Carbon-Based Nanoinclusions.
- Authors
D'Alessandro, Antonella; Coffetti, Denny; Crotti, Elena; Coppola, Luigi; Meoni, Andrea; Ubertini, Filippo
- Abstract
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.
- Subjects
PORTLAND (Or.); CARBON nanotubes; SQUARE waves; CARBON-black; NANOPARTICLES; PORTLAND cement; HYSTERESIS; CARBON nanofibers
- Publication
Sustainability (2071-1050), 2020, Vol 12, Issue 23, p9916
- ISSN
2071-1050
- Publication type
Article
- DOI
10.3390/su12239916