Detail publikace

Electrically conductive composite materials with incorporated waste and secondary raw materials

BARÁNEK, Š. ČERNÝ, V. DROCHYTKA, R. MÉSZÁROSOVÁ, L. MELICHAR, J.

Originální název

Electrically conductive composite materials with incorporated waste and secondary raw materials

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Silicate composites have very low conductivity in general. It is possible to achieve an electrical resistivity decrease by adding an electro-conductive filler. The conductive mixture consists of cementitious binder, various types of silica sand, and graphite-based conductive fillers. One of the research focusses is partial substitution of ordinary raw materials by alternative components (waste materials by-products and secondary raw materials) and its influence on composite properties. The alternative components studied were fly ash as a partial binder replacement, waste graphite from two different sources and steel shavings as a substitute for conductive filler. Resistivity of cured conductive silicate-based specimens was analysed in relation to changes in physico-mechanical properties in context of microstructural changes in the hardened cementitious matrix (by optical and scanning electron microscopy with energy disperse analysis). Partial substitution of cement by fly ash was found to reduce the electrical resistivity of the composite. Some of the waste graphite fillers significantly reduce the resistivity of the cement composite and increase the compressive strength. It was proven, that is possible to replace primary conductive fillers by secondary raw materials.

Klíčová slova

Electricall conductive silicates; secondary raw materials; impedance

Autoři

BARÁNEK, Š.; ČERNÝ, V.; DROCHYTKA, R.; MÉSZÁROSOVÁ, L.; MELICHAR, J.

Vydáno

3. 6. 2023

Nakladatel

NATURE PORTFOLIO

Místo

Berlín

ISSN

2045-2322

Periodikum

Scientific Reports

Ročník

13

Číslo

9023

Stát

Spojené království Velké Británie a Severního Irska

Strany počet

23

URL

https://www.nature.com/articles/s41598-023-36287-x

BibTex

@article{BUT183906,
  author="Šimon {Baránek} and Vít {Černý} and Rostislav {Drochytka} and Lenka {Mészárosová} and Jindřich {Melichar}",
  title="Electrically conductive composite materials with incorporated waste and secondary raw materials",
  journal="Scientific Reports",
  year="2023",
  volume="13",
  number="9023",
  pages="23",
  doi="10.1038/s41598-023-36287-x",
  issn="2045-2322",
  url="https://www.nature.com/articles/s41598-023-36287-x"
}