碳纤维沥青混凝土导电特性研究

关键字：碳纤维,沥青,混凝土,导电,特性,研究

（1. 中铁北京工程局集团有限公司 机场工程分公司，北京  102308；2.中国民航大学 机场学院，天津  300300） 

    摘要：研究碳纤维含量对沥青混凝土导电特性和升温性能的影响，通过碳纤维导电沥青混凝土电阻率变化可知，最佳碳纤维体积含量为0.4%～0.6%；高温环境较低温环境升温效果明显，高功率较低功率升温效果明显；满足融雪化冰和成本要求的功率为500～900 W/m2；低温环境升温过程中，导电沥青混凝土电阻随温度升高逐渐增大，升至0 ℃左右时，电阻达到极大值，之后电阻随温度升高减小。
    关键词：碳纤维导电沥青混凝土；电阻率；升温曲线
    中图分类号：TU528.42        文献标识码：A        文章编号：1001-702X（2017）10-0058-04

Conductive characteristic research of carbon fiber asphalt concrete
HU Tianwen1，HUO Haifeng2，ZHANG Peihao2，WANG Jiabao2，HUANG Guitao2
（1.China Railway Engineering Co. Ltd. Beijing Airport Engineering Branch，Beijing 102308，China；
2.College of Airport，Civil Aviation University of China，Tianjin 300300，China）

    Abstract：The effect of carbon fiber content on the conductivity and heating properties of asphalt concrete is studied. Through the change rule of the resistivity，get the best carbon fiber content is 0.4%~0.6%. In the different ambient temperature and power，high temperature environment and the high power heating effect are obvious. Power that could satisfy the requirement of melting ice and cost is 500~900 W/m2. In low temperature heating process，conductive asphalt concrete resistance increases with increasing temperature. When the temperature rises to about 0 ℃，resistance reaches the maximum value，after which the resistance decreases with increasing temperature.
    Key words：carbon fiber conductive asphalt concrete，resistivity，heating curve