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- W4382401101 abstract "Smart concrete is capable of self-assessing its state of stress and strain. It is produced by tailoring the electrical conductivity of concrete with the addition of conductive materials such as carbon fiber. This paper aims at determining the electrical conductivity of smart concrete materials with randomly dispersed carbon fibers. It unravels the conduction mechanism and establishes a theoretical basis of the percolation threshold for conduction. A numerical model for concrete with carbon fiber is developed. The electrical conduction through the concrete is calculated by solving the governing equations based on Kirchhoff’s reformulation of Ohm’s Law. More than ten thousand cases with varying fiber topologies, fiber fraction ratios and aspect ratios have been generated to account for the randomness of distribution and their electrical properties are evaluated. By analyzing those results, the mechanism behind the percolation threshold is explained. Finally, an algebraic relationship is posited to determine the percolation threshold has been evaluated. The relationship has been validated with experimental results. The results are extremely valuable for the design of self-sensing smart concrete." @default.
- W4382401101 created "2023-06-29" @default.
- W4382401101 creator A5024876286 @default.
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- W4382401101 date "2023-09-01" @default.
- W4382401101 modified "2023-09-29" @default.
- W4382401101 title "A Numerical Model for Electrical Properties of Self-Sensing Concrete with Carbon Fibers" @default.
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- W4382401101 doi "https://doi.org/10.1061/jmcee7.mteng-14631" @default.
- W4382401101 hasPublicationYear "2023" @default.
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