Publication detail

Comparison of electrical and self-sensing properties of Portland cement and alkali-activated slag mortars

ROVNANÍK, P. KUSÁK, I. BAYER, P. SCHMID, P. FIALA, L.

Original Title

Comparison of electrical and self-sensing properties of Portland cement and alkali-activated slag mortars

Type

journal article in Web of Science

Language

English

Original Abstract

Aluminosilicate-based construction materials are known generally as electrical insulators. The electrical resistivity of cement paste and composites with conductive admixture and the consequent multifunctionality of such materials have been widely studied. Only limited information is provided for other types of aluminosilicate binders. This paper presents a comparison of the electrical properties, especially resistance and capacitance, and consequent self-sensing functionality of Portland cement and alkali-activated slag mortars. The results show that alkali-activated slag shows enhanced conducting properties due to the presence of mobile hydrated sodium ions and metallic iron microparticles. Although the absolute resistivity of alkali-activated slag is quite low, it exhibits sufficient self-sensing properties even without the addition of conductive filler.

Keywords

Cement; Granulated Blast-Furnace Slag; Alkali Activated Cement; Electrical Properties, Microstructure

Authors

ROVNANÍK, P.; KUSÁK, I.; BAYER, P.; SCHMID, P.; FIALA, L.

Released

28. 2. 2019

Publisher

Elsevier

Location

Švýcarsko

ISBN

0008-8846

Periodical

Cement and Concrete Research

Year of study

118

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

84

Pages to

91

Pages count

8

URL

https://doi.org/10.1016/j.cemconres.2019.02.009

BibTex

@article{BUT156124,
  author="Pavel {Rovnaník} and Ivo {Kusák} and Patrik {Bayer} and Pavel {Schmid} and Lukáš {Fiala}",
  title="Comparison of electrical and self-sensing properties of Portland cement and alkali-activated slag mortars",
  journal="Cement and Concrete Research",
  year="2019",
  volume="118",
  number="1",
  pages="84--91",
  doi="10.1016/j.cemconres.2019.02.009",
  issn="0008-8846",
  url="https://doi.org/10.1016/j.cemconres.2019.02.009"
}