摘要
研究了按特定配比和工艺条件制作的碳纤维混凝土 (CFRC)路面材料的电阻率与温度之间的关系 ,表明碳纤维混凝土路面材料具有温敏性和温度自诊断特性 ,其电阻率随温度的升高而减小 ,随温度的降低而增大 ;分析了 CFRC路面材料温敏效应的机理 ;利用这一性质 ,可将碳纤维混凝土制作成温度传感器 ,用于特殊混凝土路面结构的温度自诊断检测。
The relationship between electrical resistivity and temperature of carbon fiber reinforced concrete (CFRC) road material are studied, from which the temperature sensibility of carbon fiber reinforced concrete is discovered, the electrical resistivity of CFRC decreases with increasing temperature and increases with decreasing temperature. The function mechanisms of the temperature are also analyzed. Using this property, carbon fiber reinforced concrete can be used as a kind of temperature sensor and self diagnose the temperature of airfield runways or bridge deck.
基金
国家自然科学基金项目资助 (项目批准号 :5 0 0 780 42 )
关键词
电阻率
温敏性
温度自诊断
碳纤维混凝土路面
CFRC
carbon fiber reinforced concrete
resistivity
temperature sensibility
temperature self diagnosis
