关键词: 碳纤维发热线, 自发热, 机场道面, 融雪化冰

Abstract: In order to study the deicing and snow-melting rules of self-heating airfield concrete pavement with continuous carbon fiber heating wire, three cement concrete pavement slabs were made which respectively inbuilt 6K,12K and 24K carbon fiber heating wire. Experiments in different input power and thickness were implemented, and the mechanism was analyzed. The results indicates that setting a insulation layer in concrete slabs could reduce thermal storage and improve the efficiency of snowmelt deicing. Time-consuming and power consumption were mainly decided by the input power and thickness of snow and ice. Within a certain rang, every 50W/m² power increase, the time of snow-melting would short for 1.14h, and 0.25kW·h/m² of electricity would be saved; each 1cm snow thickness increase, the time of snow-melting would prolong 0.69h and the power consumption would increase 0.35 kW·h/m². In addition, pavement preheating can not only avoid snow cover and ice up, energy could be save by using intermittent power supply.

Key words: carbon fiber heating wire, self-heating, airfield pavement, snow and ice melting