Publication detail

Impedance spectroscopy measurement of metakaolin-based alkali-activated building materials

KUSÁK, I. LUŇÁK, M. MIZEROVÁ, C. ROVNANÍK, P.

Original Title

Impedance spectroscopy measurement of metakaolin-based alkali-activated building materials

Type

conference paper

Language

English

Original Abstract

Cement-containing as well as cement-free building materials are regarded as dielectrics. Therefore, electrically conducting admixtures are to be added to them in order to increase their electrical conductivity. Steel or carbon fibres, metal powder, graphite, carbon soot or carbon nanotubes are commonly used for this purpose. The conductivity increase offers new application options, such as sensor property materials, self-heated materials, or electromagnetic smog shielding materials. The specimens of the mixes to be studied were subjected to an electrical analysis carried out within the frequency range from 100 MHz to 3 GHz by means of an ZNC vector analyser and an SPEAG-made DAK-12 coaxial probe and, furthermore, a dedicated automatically measuring device operating within the frequency range from 40 Hz to 1 MHz. The frequency spectra of interest were measured on various copolymer specimens differing from each other by the content of graphite and carbon nanotubes. Higher content of these admixtures increases the electrical conductivity and the building materials thus become easier to measure by means of electromagnetic measuring methods.

Keywords

electrical properies; impedance; alkali-acivated; cement; impedance spectroscopy

Authors

KUSÁK, I.; LUŇÁK, M.; MIZEROVÁ, C.; ROVNANÍK, P.

Released

18. 12. 2020

Publisher

IOP Publishing

Location

United Kingdom

ISBN

1757-8981

Periodical

IOP Conference Series: Materials Science and Engineering

Year of study

1039

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1

Pages to

6

Pages count

6

URL

https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012020

Full text in the Digital Library

http://hdl.handle.net/11012/196531

BibTex

@inproceedings{BUT166313,
  author="Ivo {Kusák} and Miroslav {Luňák} and Cecílie {Mizerová} and Pavel {Rovnaník}",
  title="Impedance spectroscopy measurement of metakaolin-based alkali-activated building materials",
  booktitle="23st International Conference on Building Materials, Products and Technologies",
  year="2020",
  journal="IOP Conference Series: Materials Science and Engineering",
  volume="1039",
  number="1",
  pages="1--6",
  publisher="IOP Publishing",
  address="United Kingdom",
  doi="10.1088/1757-899X/1039/1/012020",
  issn="1757-8981",
  url="https://iopscience.iop.org/article/10.1088/1757-899X/1039/1/012020"
}