Journal ArticleDOI
Electrical percolation phenomena in cement composites containing conductive fibres
TLDR
In this paper, electrical conductivity measurements on cement composites containing carbon fibres or steel fibres were conducted, and percolation phenomena associated with electrical conductivities were observed.Abstract:
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.read more
Citations
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Intrinsic self-sensing concrete and structures: A review
Baoguo Han,Siqi Ding,Xun Yu +2 more
TL;DR: This paper systematically introduces research progress of the Intrinsic self-sensing concrete, with attentions to its compositions, fabrication methods, sensing signal testing methods, sensed properties and generation mechanism, and structural applications.
Journal ArticleDOI
Cement-based sensors with carbon fibers and carbon nanotubes for piezoresistive sensing
Faezeh Azhari,Nemkumar Banthia +1 more
TL;DR: In this paper, two types of cement-based sensors, one with carbon fibers alone and the other carrying a hybrid of both fibers and nanotubes, were considered and their ability to sense an applied compressive load through a measureable change in resistivity was investigated.
Journal ArticleDOI
Cement reinforced with short carbon fibers: a multifunctional material
TL;DR: In this article, a review of carbon-matrix composites containing short carbon fibers is presented, which exhibit attractive tensile and flexural properties, low drying shrinkage, high specific heat, low thermal conductivity, high electrical conductivity and high corrosion resistance and weak thermoelectric behavior.
Journal ArticleDOI
Conductivity of carbon fiber reinforced cement-based composites
Bing Chen,Keru Wu,Wu Yao +2 more
TL;DR: In this article, the authors presented the conductive behavior of carbon fiber cement-based composites and the relationship between conductivity and volume fraction of carbon fibre indicated that the statistical percolation theory is suitable and applicable for the change rule of conductivity of system with the volume of the carbon fiber.
Journal ArticleDOI
Investigations on scalable fabrication procedures for self-sensing carbon nanotube cement-matrix composites for SHM applications
Antonella D'Alessandro,Marco Rallini,Filippo Ubertini,Annibale Luigi Materazzi,Jose Maria Kenny +4 more
TL;DR: In this paper, a systematic investigation on various procedures for fabricating carbon-nanotube-cement pastes, mortars and concretes is presented, in order to identify a processing procedure that, without sonication, might be potentially effective for fabrication of self-sensing cement-based composites in a way that is compatible with large scale deployment.
References
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Book
The physics of amorphous solids
TL;DR: The formation of amorphous solids Amorphous Morphology: The Geometry and Topology of Disorder Chalcogenide Glasses and Organic Polymers The Percolation Model Localization Delocalization Transitions Optical and Electrical Properties Index as discussed by the authors.
Journal ArticleDOI
Models proposed to explain the electrical conductivity of mixtures made of conductive and insulating materials
TL;DR: In this article, the electrical conductivity of mixtures of conductive and insulating materials is reviewed and different models have been proposed aimed at the prediction of the conductivity or the percolation concentration.
Journal ArticleDOI
The conduction of electricity through concrete
TL;DR: In this paper, the authors examined the relationship between mix proportions, electrical properties of the constituents of concrete and the over-all electrical resistivity for concrete and proposed an electrical model for conduction of electricity through the heterogeneous medium of concrete.
Journal ArticleDOI
Electrical resistivity of carbon and steel micro-fiber reinforced cements
TL;DR: In this paper, electrical resistivity measurements were conducted on cement pastes reinforced with conductive micro-fibers of carbon and steel both in mono and hybrid (combination) forms.
Journal ArticleDOI
Electromagnetic interference shielding by carbon fibre reinforced cement
TL;DR: The addition of short carbon fibres and chemical agents (triethanolamine, sodium sulphate and potassium aluminium sulphate) to Portland cement greatly increased the electromagnetic interference shielding effectiveness of the cement as mentioned in this paper.
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