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Electrical percolation phenomena in cement composites containing conductive fibres

Ping Xie / Ping Gu / Beaudoin, J.J.

Concrete with a combination of excellent mechanical properties and electrical conductivity may have important applications in the electrical and electronic, military and construction industries, for example electromagnetic interference shielding, electrostatic discharge and cathodic protection of reinforcing steel in concrete structures. Electrically conductive concrete usually contains conductive phases, either conductive particles or conductive fibres. Electrical conductivity measurements on cement composites containing carbon fibres or steel fibres were conducted. Percolation phenomena associated with electrical conductivity were observed. The conductivity of the systems studied increased by several orders of magnitude, at a specific concentration of conductive fibre, i. e. the percolation concentration. The percolation concentration is shown to be dependent on conductive fibre geometry instead of system composition. The results provide an important guide for the manufacture of conductive cement composites containing conductive fibres.

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Electrical percolation phenomena in cement composites containing conductive fibres

Ping Xie / Ping Gu / Beaudoin, J.J.

Concrete with a combination of excellent mechanical properties and electrical conductivity may have important applications in the electrical and electronic, military and construction industries, for example electromagnetic interference shielding, electrostatic discharge and cathodic protection of reinforcing steel in concrete structures. Electrically conductive concrete usually contains conductive phases, either conductive particles or conductive fibres. Electrical conductivity measurements on cement composites containing carbon fibres or steel fibres were conducted. Percolation phenomena associated with electrical conductivity were observed. The conductivity of the systems studied increased by several orders of magnitude, at a specific concentration of conductive fibre, i. e. the percolation concentration. The percolation concentration is shown to be dependent on conductive fibre geometry instead of system composition. The results provide an important guide for the manufacture of conductive cement composites containing conductive fibres.

Electrical percolation phenomena in cement composites containing conductive fibres

Ping Xie / Ping Gu / Beaudoin, J.J.

Concrete with a combination of excellent mechanical properties and electrical conductivity may have important applications in the electrical and electronic, military and construction industries, for example electromagnetic interference shielding, electrostatic discharge and cathodic protection of reinforcing steel in concrete structures. Electrically conductive concrete usually contains conductive phases, either conductive particles or conductive fibres. Electrical conductivity measurements on cement composites containing carbon fibres or steel fibres were conducted. Percolation phenomena associated with electrical conductivity were observed. The conductivity of the systems studied increased by several orders of magnitude, at a specific concentration of conductive fibre, i. e. the percolation concentration. The percolation concentration is shown to be dependent on conductive fibre geometry instead of system composition. The results provide an important guide for the manufacture of conductive cement composites containing conductive fibres.

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Title:

Electrical percolation phenomena in cement composites containing conductive fibres

Additional title:

Elektrische Percolationsphänomene in Zement-Verbundstoffen mit leitfähigen Fasern

Contributors:

Ping Xie (author) / Ping Gu (author) / Beaudoin, J.J. (author)

Published in:

Journal of Materials Science ; 31 ; 4093-4097

Publication date:

1996

Size:

5 Seiten, 9 Bilder, 1 Tabelle, 7 Quellen

ISSN:

DOI:

https://doi.org/10.1007/BF00352673

Type of media:

Article (Journal)

Type of material:

Print

Language:

English

Keywords:

Zement , faserverstärktes Erzeugnis , Kohlenstoffaser , Stahl , Metallfaser , elektrische Leitfähigkeit , Hydratisieren , Einsickern

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