Study On Temperature-Rising Rules Of Self-Heating Airfield Pavement With Continuous Carbon Fiber Heating Wire

Three cement concrete pavement slabs were made, which, respectively, had inbuilt 6 k, 12 k and 24 k carbon fiber heating wire, and the temperature-rising law of plates was studied through field experiments in different natural environments and input powers. The results indicate that (1) the closer the heating wire, the faster the temperature would rise and the higher the temperature would reach. (2) Temperature of different points on the same plane of each concrete slab surface was less than 3 degrees C when the spacing of heating wire was 10 cm, and the temperature uniformity was good. (3) The results of temperature rise were mainly decided by the input power. The temperature of the slab surface could rise to 0 degrees C after 3.5 hours with the -10 degrees C natural temperature and 382 W/m(2) input power. (4) The variation tendency of the temperature on the slab surface was always in correspondence with the environmental temperature. The temperature on the slab surface would reduce by more than 20% when the environment temperature reduced by 3 degrees C.