Publication result detail

Electrical properties of fly ash geopolymer composites with graphite conductive admixtures

MIZEROVÁ, C.; KUSÁK, I.; ROVNANÍK, P.

Original Title

Electrical properties of fly ash geopolymer composites with graphite conductive admixtures

English Title

Electrical properties of fly ash geopolymer composites with graphite conductive admixtures

Type

Paper in proceedings (conference paper)

Original Abstract

Construction materials with increased electrical conductivity could be possibly used in health monitoring of structures (stress, deformation, damages), their maintenance or traffic monitoring. The aim of this study was the application of functional filler and its influence on the electrical properties of the alkali-activated fly ash matrix. The graphite powder was added to the reference material in the amount of 2–10 %. Besides the assessment of the critical amount of filler necessary to achieve a percolation threshold in the structure of the composite, the effect on the electrical properties of the matrix (resistance, capacitance, conductivity) was determined. The optimal amount of filler was also determined with respect to the changes in microstructure of the binder and its mechanical properties.

English abstract

Construction materials with increased electrical conductivity could be possibly used in health monitoring of structures (stress, deformation, damages), their maintenance or traffic monitoring. The aim of this study was the application of functional filler and its influence on the electrical properties of the alkali-activated fly ash matrix. The graphite powder was added to the reference material in the amount of 2–10 %. Besides the assessment of the critical amount of filler necessary to achieve a percolation threshold in the structure of the composite, the effect on the electrical properties of the matrix (resistance, capacitance, conductivity) was determined. The optimal amount of filler was also determined with respect to the changes in microstructure of the binder and its mechanical properties.

Keywords

fly ash; geopolymer; graphite; electrical properties; mechanical properties; microstructure

Key words in English

fly ash; geopolymer; graphite; electrical properties; mechanical properties; microstructure

Authors

MIZEROVÁ, C.; KUSÁK, I.; ROVNANÍK, P.

RIV year

2020

Released

25.07.2019

Publisher

Czech Technical University in Prague

Location

Praha

ISBN

978-80-01-06594-5

Book

SPECIAL CONCRETE AND COMPOSITES 2018

ISBN

2336-5382

Periodical

Acta Polytechnica CTU Proceedings

Number

22

State

Czech Republic

Pages from

72

Pages to

76

Pages count

5

URL

https://ojs.cvut.cz/ojs/index.php/APP/article/view/5658

BibTex

@inproceedings{BUT157944,
  author="Cecílie {Mizerová} and Ivo {Kusák} and Pavel {Rovnaník}",
  title="Electrical properties of fly ash geopolymer composites with graphite conductive admixtures",
  booktitle="SPECIAL CONCRETE AND COMPOSITES 2018",
  year="2019",
  journal="Acta Polytechnica CTU Proceedings",
  number="22",
  pages="72--76",
  publisher="Czech Technical University in Prague",
  address="Praha",
  doi="10.14311/APP.2019.22.0072",
  isbn="978-80-01-06594-5",
  url="https://ojs.cvut.cz/ojs/index.php/APP/article/view/5658"
}