Abstract

The influence of fibre and moisture content on the electrical properties of cement-based sensors (cement mortars incorporating milled carbon fibres) with a percolation zone from 0.55 to 1.29 vol. % has been studied. Under drying conditions, cement-based sensors produced more stable electrical behaviour than plain mortars. Two-point AC impedance measurement was employed to study the dielectric polarizability and bulk conductivity of cement-based sensors, which were both found to be enhanced upon fibre inclusion, and the enhancement of conductivity became more pronounced towards higher frequencies. We propose the characteristic bulk conductivity can be obtained at 100 kHz for cement-based sensors.
Original languageEnglish
Pages1-5
Number of pages5
Publication statusPublished - 4 Sep 2020
Event74th Annual RILEM Week & 40th Cement and Concrete Science Conference - University of Sheffield, Sheffield, UK United Kingdom
Duration: 31 Aug 20204 Sep 2020
https://www.sheffield.ac.uk/materials/rilem2020

Conference

Conference74th Annual RILEM Week & 40th Cement and Concrete Science Conference
Country/TerritoryUK United Kingdom
CitySheffield
Period31/08/204/09/20
Internet address

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