Electrical Conductive Properties of 3D-PrintedConcrete Composite with Carbon Nanofibers
No Thumbnail Available
Identifiers
Publication date
2022-11
Advisors
Journal Title
Journal ISSN
Volume Title
Publisher
Citations
Export
Abstract
Electrical conductive properties in cement-based materials have received attention in recent years due to their key role in many innovative application (i.e., energy harvesting, deicing systems, electromagnetic shielding, and self-health monitoring). In this work, we explore the use 3D printing as an alternative method for the preparation of electrical conductive concretes. With this aim, the conductive performance of cement composites with carbon nanofibers (0, 1, 2.5, and 4 wt%) was explored by means of a combination of thermogravimetric analysis (TGA) and dielectric spectroscopy (DS) and compared with that of specimens prepared with the traditional mold method. The combination of TGA and DS gave us a unique insight into the electrical conductive properties, measuring the specimens’ performance while monitoring the amount in water confined in the porous network. Experimental evidence of an additional contribution to the electrical conductivity due to sample preparation is provided. In particular, in this work, a strong correlation between water molecules in interconnected pores and the (Formula presented.) values is shown, originating, mainly, from the use of the 3D printing technique.
Description
Publisher Copyright: © 2022 by the authors.
Type
Citation
Goracci , G , Salgado , D M , Gaitero , J J & Dolado , J S 2022 , ' Electrical Conductive Properties of 3D-PrintedConcrete Composite with Carbon Nanofibers ' , Nanomaterials , vol. 12 , no. 22 , 3939 . https://doi.org/10.3390/nano12223939