Electrical properties of alkali-activated slag composite with combined graphite/CNT filler
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Date
2017-10-25
Authors
Rovnaník, Pavel
Míková, Maria
Kusák, Ivo
0000-0001-8404-6505Advisor
Referee
Mark
Journal Title
Journal ISSN
Volume Title
Publisher
IOP Publishing Ltd.
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Abstract
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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Citation
IOP Conference Series: Materials Science and Engineering. 2017, vol. 251, issue 1, p. 1-9.
http://iopscience.iop.org/article/10.1088/1757-899X/251/1/012082/pdf
http://iopscience.iop.org/article/10.1088/1757-899X/251/1/012082/pdf
Document type
Peer-reviewed
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Published version
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Language of document
en