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《Journal of Air Force Engineering University(Natural Science Edition)》 2017-05
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A Significance Analysis of Influence Factors on Carbon Fiber Heating Wire Concrete Pavement Slab Temperature Rising

ZHANG Chujie;XU Wei;CAI Liangcai;LI Chunming;Airport Construction Engineering Department,Air Force Engineering University;  
The temperature rising rate of carbon fiber reinforced concrete pavement slab has relations with many factors.In order to study the significance of influence of three factors,i.e.the working current intensity,the heating wire buried depth and spacing,on the temperature rising rate of the concrete,this paper uses ANSYS to modeling to test and obtains data by adopting orthogonal method and response surface methodology to analyze,and uses field test to verify.The F value of buried depth,spacing and temperature obtained by orthogonal method is respectively 13.634,25.605 and 14.431.The P value of three factors obtained by response surface methodology is respectively 0.0375,0.0126 and 0.0150.The analysis shows that these three factors have a significant effect on the temperature rising rate of concrete,and the order is Bheating wire spacing C working current intensity Aheating wire buried depth.The fitting equation of temperature rising rate obtained by DX is:α=2.73-0.077 A-0.099 B+0.096 C+0.008 AB+0.013 AC+0.01 BC-0.097 A2+0.028 B2-0.063 C2,thus it can also be obtained that the spacing of heating wire is 80 mm,buried depth is 50~90 mm,working current intensity is 0.5~1.0 A,and the temperature rising rate meets the requirements of pavement slab deicing and snow melting.
【CateGory Index】: V351.11
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