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融雪化冰用钢渣导电沥青混凝土的电阻稳定性

Keywords: 钢渣,导电,沥青混凝土,电阻稳定性

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Abstract:

探讨了不同石墨掺量下钢渣导电沥青混凝土(conductiveasphaltconcreteusingsteelslagasaggregate,CACS)的电阻稳定性,研究了温度、氯盐溶液、载荷变化对钢渣导电沥青混凝土电阻率的影响.试验表明,钢渣作为集料复掺石墨制备出的钢渣导电沥青混凝土,电阻随时间变化小,在氯盐溶液中其电阻稳定性也良好.钢渣导电沥青混凝土的电阻呈现明显的正温度系数效应(positivetemperaturecoefficient,PTC),电阻率随着温度的升高而逐渐增加,具有良好的温敏性;电阻率随着压力的增大而减小,卸载后电阻率有所增加,但不能完全恢复到原来的电阻率.

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