连续式碳纤维自发热机场道面温升规律试验研究  

EXPERIMENT RESEARCH ON TEMPERATURE-RISING LAW OF SELF-HEATING AIRFIELD PAVEMENT WITH CONTINUOUS CARBON FIBER HEATING WIRE

作　　者：李春鸣[1] 许巍[1] 李强[2] 刘效国[2] 徐贵[1] 李光元[1] 罗永胜[2] 

机构地区：[1]空军工程大学机场建筑工程系,陕西西安710038 [2]中国航空港建设第八工程总队,辽宁沈阳110021

出　　处：《玻璃钢／复合材料》2015年第11期64-70,共7页Fiber Reinforced Plastics/Composites

基　　金：军队科研项目(CKJ11J019)

摘　　要：针对布置连续式碳纤维线的自发热机场混凝土道面,分别制作了内设6K、12K、24K发热线的水泥混凝土板,并在不同室外环境、不同输入功率下进行了温升规律现场试验。试验结果表明:1距离发热线越近,温升越快,温度越高;2发热线间距为10cm时,板面不同位置的温差在3℃以内,温度均匀性良好;3温升效果主要由输入功率决定,当环境温度在-10℃且输入功率为382W/m2时,3.5h后板面温度即可超过3℃;4自然环境对板面温升影响显著,板面温度变化与环境温度变化趋势一致,环境温度降低3℃,板面温度将会随之降低20%以上;5混凝土道面板散热慢,可以利用余热进行融雪化冰。Aiming at self-heating airfield concrete pavement with continuous carbon fiber heating wire, three cement concrete pavement slabs were made, which respectively inbuih 6K, 12K and 24K carbon fiber heating wire, and the temperature-rising law of plates were studied through field experiments in different natural environment and input power. The results indicate that the more closer the heating wire, the faster the temperature could rise and the higher temperature could reach. Temperature of different points on the same plane of each concrete slab surface was less than 3℃ when spacing was 10cm, and the temperature uniformity was good. The results of temperatre-rising were mainly determined by the input power.The temperature of slab surface could rise to 0℃ after 3.5 hours with the -10℃ natural temperature and 382W/m2 input power. The natural environment has significant effects on the tem- perature-rising of slab surface. The variation tendency of temperature on 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 3℃. The thermal dissipation of concrete slab changed slowly, and the surplus thermal energy could be used for melting snow and ice.

关 键 词：碳纤维发热线 自发热 机场道面 温升规律 融雪化冰 

分 类 号：TB332[一般工业技术—材料科学与工程]