Electrothermal effect of carbon fiber reinforced conductive concrete

Title: Electrothermal effect of carbon fiber reinforced conductive concrete
Author(s): Z. Tang, Z. Li, J. Qian, Z. Hou
Paper category : conference
Book title: International Conference on Advances in Concrete and Structures
Editor(s): Ying-shu Yuan, Surendra P. Shah and Heng-lin Lü
Print-ISBN: 2-912143-41-1
e-ISBN: 2351580176
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 1036 - 1042
Total Pages: 7
Nb references: 7
Language: English

Abstract: 
The electrical and electrothermal properties of short carbon fiber reinforced electrically conductive concrete (CFRC) are studied systematically. These properties including the electrical conduction, the curve of temperature increasing during conducting, the effect of temperature on the electrical resistance, the relationships of current versus voltage and power output versus voltage, and the stability and uniformity of heat produced in CFRC slab. The experimental results show that CFRC electrical heating slab possesses good conductivity and electrothermal effect. The electrical resistivity of the CFRC slab is about 25 W·cm. The conducting time and temperature during heating have no obvious influences on its electrical resistance, and good linear relationship existed between the electrical current and voltage. The heat generated in the slab are stable and uniform, an average power output of 1025 W/m2 is produced when the slab is activated with 36 volts of DC power, this power level is enough for deicing application. Taking advantage of this effect, CFRC can be used as a kind of electrothermal material to be applied in deicing or snow melting of concrete airfield runways and road surfaces.

Online publication: 2003-08-10
Publication type : full_text
Public price (Euros): 0.00