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Electrical properties of alkali-activated slag composite with combined graphite/CNT filler

ROVNANÍK, P. MÍKOVÁ, M. KUSÁK, I.

Originální název

Electrical properties of alkali-activated slag composite with combined graphite/CNT filler

Anglický název

Electrical properties of alkali-activated slag composite with combined graphite/CNT filler

Jazyk

en

Originální abstrakt

Alkali-activated industrial by-products such as blast furnace slag are known to possess properties which are comparable to or even better than those observed for ordinary Portland cement. The combination of alkali-activated slag matrix with conductive filler introduces new functionalities which are commonly known for self-sensing or self-heating concrete. The present paper discusses the effect of the mixture of two different conductive fillers, graphite powder and carbon nanotubes (CNTs), on the electrical properties of alkali-activated slag mortars. Prepared samples were also tested for their mechanical properties and microstructure was investigated by means of mercury intrusion porosimetry and scanning electron microscopy. The percolation threshold for the resistance was reached for the mixture containing 0.1% CNTs and 8% graphite powder.

Anglický abstrakt

Alkali-activated industrial by-products such as blast furnace slag are known to possess properties which are comparable to or even better than those observed for ordinary Portland cement. The combination of alkali-activated slag matrix with conductive filler introduces new functionalities which are commonly known for self-sensing or self-heating concrete. The present paper discusses the effect of the mixture of two different conductive fillers, graphite powder and carbon nanotubes (CNTs), on the electrical properties of alkali-activated slag mortars. Prepared samples were also tested for their mechanical properties and microstructure was investigated by means of mercury intrusion porosimetry and scanning electron microscopy. The percolation threshold for the resistance was reached for the mixture containing 0.1% CNTs and 8% graphite powder.

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Dokumenty

BibTex


@inproceedings{BUT140831,
  author="Pavel {Rovnaník} and Maria {Míková} and Ivo {Kusák}",
  title="Electrical properties of alkali-activated slag composite with combined graphite/CNT filler",
  annote="Alkali-activated industrial by-products such as blast furnace slag are known to possess properties which are comparable to or even better than those observed for ordinary Portland cement. The combination of alkali-activated slag matrix with conductive filler introduces new functionalities which are commonly known for self-sensing or self-heating concrete. The present paper discusses the effect of the mixture of two different conductive fillers, graphite powder and carbon nanotubes (CNTs), on the electrical properties of alkali-activated slag mortars. Prepared samples were also tested for their mechanical properties and microstructure was investigated by means of mercury intrusion porosimetry and scanning electron microscopy. The percolation threshold for the resistance was reached for the mixture containing 0.1% CNTs and 8% graphite powder.",
  address="IOP Publishing Ltd.",
  booktitle="3rd International Conference on Innovative Materials, Structures and Technologies, IMST 2017;",
  chapter="140831",
  doi="10.1088/1757-899X/251/1/012082",
  howpublished="online",
  institution="IOP Publishing Ltd.",
  number="1",
  year="2017",
  month="october",
  pages="1--9",
  publisher="IOP Publishing Ltd.",
  type="conference paper"
}