RT Journal Article
T1 Electrical Conductive Properties of 3D-PrintedConcrete Composite with Carbon Nanofibers
A1 Goracci, Guido
A1 Salgado, David M.
A1 Gaitero, Juan J.
A1 Dolado, Jorge S.
AB 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.
SN 2079-4991
YR 2022
FD 2022-11
LK https://hdl.handle.net/11556/3253
UL https://hdl.handle.net/11556/3253
LA eng
NO 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
NO Publisher Copyright: © 2022 by the authors.
NO This work was born under the umbrella of the ECRETE project (RTI2018-098554-B-I00) funded by MCIN/AEI/10.13039/501100011033 (Program I+D+i RETOS INVESTIGACIÓN 2018), the project PoroPCM (PCI2019-103657) funded by MCIN/AEI/10.13039/501100011033 and co-founded by the European Union (Programación Conjunta Internacional 2019) and the project NRG-STORAGE (GA 870114) funded by the European Commission. Research conducted in the scope of the Transnational Common Laboratory (LTC) Aquitaine-Euskadi Network in Green Concrete.
DS TECNALIA Publications
RD 30 jul 2024