Experimental Study on the Electrothermal Effect of Concrete Reinforced with Hybrid Carbon and Steel Fiber

Abstract:

The electrothermal effect of the carbon fiber concrete provides a new way to eliminate the snow and ice on an airfield runway. But the electrothermal effect of concrete reinforced with hybrid carbon and steel fiber and the appropriate fiber content are still unknown. The research aims at the questions above and investigates the electrothermal effect of concrete slabs with different hybrid fiber contents. It shows that the addition of steel fiber can increase the electrothermal effect of hybrid fiber concrete when the carbon fiber content is about 0.6% ~ 0.8% of cement by weight, which means that steel fiber can help to form conductive network. But the electrothermal effect of hybrid fiber concrete is reduced when carbon fiber content reaches 1.0% of cement by weight, because the addition of steel fiber will block uniform dispersal and effective overlap of the carbon fiber and the conductive network gets worse. Air bubbles generate inside the concrete can also increase the electrical resistivity of the hybrid fiber concrete and the electrothermal effect gets worse.

• Periodical: Applied Mechanics and Materials (Volumes 490-491)
• Pages: 94-98
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.490-491.94
• Online since: January 2014
• Authors: Jian Chao Xu, Yi Sui, Liao Li, Bo Diao
• Keywords: Carbon Fiber (CF), Concrete Reinforced with Hybrid Fiber, Deicing, Electrothermal Effect, Hybrid-Fiber of Carbon, Snow Melting, Steel Fiber (SF)

References

[1] The 12th Five Years Plan of Chinese Civil Aviation Development, the Civil Aviation Administration of China, (2011).

[2] Sherif Yehia and Christopher Y. Tuan, Conductive Concrete Overlay for Bridge Deck Deicing, ACI Materials Journal，96(3), 382-390(2001).

DOI: 10.14359/637

[3] Songlin Tang, Bo Diao, Mechanical properties of ultra-high performance steel fiber reinforced concrete, Journal Of Traffic and Transportation Engineering, 11(2), 2011. 4, 8-13.

[4] Zhuoqiu Li, Wang Jianjun, Influence of Aggregates on Properties of Carbon Fiber Electrically Conductive Concrete for Deicing or Snow Melting [J], Journal of Wuhan University of Technology (Transportation Science & Engineering), 2005, (05): 704-706.

[5] Farhad Reza, Gordon B. Batson, Jerry A. Yamarnuro, et al. Volume Electrical Resistivity of Carbon Fiber Cement Composites. ACI Materials Journal, 2001, 98(1): 25-35.

DOI: 10.14359/10157

[6] Zuquan Tang, Zhuoqiu Li, Jueshi Qian, Application of Carbon Fiber Reinforced Conductive Concrete for Melting Ice and Snow on Road Surface [J]. Jounal of Building Materials, 2004, (02): 215-220.

[7] Zuofu Hou, Zhuoqiu Li, Jianjun Wang. The Influence of Electrode on the Properties of Carbon Fiber (CF) Electrically Conductive Concrete for Heating [J]. Journal of Wuhan University of Technology, 2006, (09): 45-47.