Detail publikace

Investigation Of Electric And Thermal Properties Of Alkali-Activated Aluminosilicates With A CNT Admixture

ZMEŠKAL, O. TRHLÍKOVÁ, L. POSPÍŠIL, J. FIALA, L. FLORIÁN, P.

Originální název

Investigation Of Electric And Thermal Properties Of Alkali-Activated Aluminosilicates With A CNT Admixture

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The paper is focused on measurements of electric and thermal properties of alkali-activated aluminosilicates (AAAs) with a carbon nanotube (CNT) admixture. Such composites, fabricated from blast-furnace slag, quartz sand, water glass as an alkali activator, a small amount of electrically conductive CNT admixture and water exhibit better electric and thermal properties than the reference material without the CNT. Such an enhancement opens new practical applications, such as designing snow-melting, de-icing or self-sensing systems that do not need any external sensors to detect the current condition of the building's materials. Moreover; the economic aspect is more favourable in the case of AAA than that of Portland cement-based materials. The DC (direct current) electric properties are determined experimentally from the current-voltage (I-V) characteristics, the dielectric properties by means of impedance spectroscopy. Dielectric measurements allow us to determine the contribution of the individual components to the conductivity of the composite. The electric and thermal conductivities in the transverse direction were 16.16 mu S.m(-1) and 0.907 W.m(-1).K-1 for 0 % of CNT and 34.46 mu S.m(-1) and 1.298 W.m(-1).K-1 for 0.4 % of CNT, respectively.

Klíčová slova

Alkali-activated aluminosilicates; Carbon nanotubes; electric and dielectric properties; Thermal properties

Autoři

ZMEŠKAL, O.; TRHLÍKOVÁ, L.; POSPÍŠIL, J.; FIALA, L.; FLORIÁN, P.

Vydáno

20. 4. 2020

Nakladatel

University of Chemistry and Technology, Prague

Místo

PRAGUE 6

ISSN

1804-5847

Periodikum

CERAMICS-SILIKATY

Ročník

64

Číslo

2

Stát

Česká republika

Strany od

180

Strany do

189

Strany počet

10

URL

http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1313

Plný text v Digitální knihovně

http://hdl.handle.net/11012/187343

BibTex

@article{BUT163944,
  author="Oldřich {Zmeškal} and Lucie {Trhlíková} and Jan {Pospíšil} and Lukáš {Fiala} and Pavel {Florián}",
  title="Investigation Of Electric And Thermal Properties Of Alkali-Activated Aluminosilicates With A CNT Admixture",
  journal="CERAMICS-SILIKATY",
  year="2020",
  volume="64",
  number="2",
  pages="180--189",
  doi="10.13168/cs.2020.0007",
  issn="1804-5847",
  url="http://www.ceramics-silikaty.cz/index.php?page=cs_detail_doi&id=1313"
}