Christiana Chang et al 2009 Smart Mater. Struct. 18 127001 doi:10.1088/0964-1726/18/12/127001
Christiana Chang1, Michelle Ho2, Gangbing Song1,4, Yi-Lung Mo2 and Hui Li3
Show affiliationsThis paper presents the development of an electric, self-heating concrete system that uses embedded carbon nanofiber paper as electric resistance heating elements. The proposed system utilizes the conductive properties of carbon fiber materials to heat a surface overlay of concrete with various admixtures to improve the concrete's thermal conductivity. The development and laboratory scale testing of the system were conducted for the various compositions of concrete containing, separately, carbon fiber, fly ash, and steel shavings as admixtures. The heating performances of these concrete mixtures with the carbon fiber heating element were experimentally obtained in a sub-freezing ambient environment in order to explore the use of such a system for deicing of concrete roadways. Analysis of electric power consumption, heating rate, and obtainable concrete surface temperatures under typical power loads was performed to evaluate the viability of a large scale implementation of the proposed heating system for roadway deicing applications. A cost analysis is presented to provide a comparison with traditional deicing methods, such as salting, and other integrated concrete heating systems.
66.70.-f Nonelectronic thermal conduction and heat-pulse propagation in solids; thermal waves
Issue 12 (December 2009)
Received 15 September 2009
Published 10 November 2009
Christiana Chang et al 2009 Smart Mater. Struct. 18 127001
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