Open AccessHeating and de-icing function in conductive concrete and cement paste with the hybrid addition of carbon nanotubes and graphite products
Author(s) -
Catalina Farcas,
Ó. Galao,
R. Navarro,
E. Zornoza,
F. Javier Baeza,
B Del Moral,
R. Pla,
P. Garcés
Publication year - 2021
Publication title -
smart materials and structures
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.898
H-Index - 154
eISSN - 1361-665X
pISSN - 0964-1726
DOI - 10.1088/1361-665x/abe032
Subject(s) - icing , materials science , composite material , graphite , electrical conductor , cement , carbon nanotube , oceanography , geology
This paper aims to study the viability of conductive cement paste and conductive concrete with the hybrid addition of carbon nanotubes (CNT) and graphite powder (GP) as a self-heating material for heating, ice formation prevention and de-icing in pavements. Different heating tests, ice-preventing tests and de-icing tests were performed with cement paste and concrete specimens. Results confirm that the conductive cement composites studied, with the addition of 1% CNT + 5% GP, exhibited heating, de-icing and ice-prevention properties, when applying constant AC/DC voltages between the two end sides of each specimen, with relatively low energy consumption. The main contribution of this work is to achieve a sufficient conductivity level for the development of the heating and de-icing function using this hybrid addition in concrete, which has not been used so far, in order to be applied in real concrete structures.