Heating Characteristics and Induced Healing Efficiencies of Asphalt Mixture via Induction and Microwave Heating.
Heating Characteristics and Induced Healing Efficiencies of Asphalt Mixture via Induction and Microwave Heating.
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感应和微波加热沥青混合料的加热特性和诱导愈合效率
DOI：
10.3390/ma11060913
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发表时间：
2018-05-29
期刊：
影响因子：
--
通讯作者：
Li H
中科院分区：
文献类型：
--
作者：
Liu Q;Chen C;Li B;Sun Y;Li H
研究了钢纤维沥青混合料在感应加热和微波加热条件下的加热特性和诱导愈合效率。采用红外热像仪对不同加热方式下沥青混合料的加热特性进行了研究。通过观察裂缝闭合情况和测试裂缝愈合后的抗折恢复率，研究了不同愈合条件下沥青混合料试件的愈合性能。结果表明，在相同的输出功率和辐射方式下，感应加热沥青混合料表面的加热速度远高于微波机械加热。虽然在感应加热下的沥青混合料内的温度分布是相当不均匀的，微波加热导致更均匀的温度分布。微波加热的有效加热深度远高于感应加热。采用感应加热的样品发生梯度愈合，而微波加热可以实现均匀的愈合效果。
This paper investigates the heating characteristics and induced healing efficiencies of asphalt mixture containing steel fiber under induction heating and microwave heating. The heating characteristics of an asphalt mixture with different heating methods were studied with an infrared camera. The healing performance of the asphalt mixture specimens in different healing conditions were investigated by observing the crack closure and testing the fracture resistance recovery after healing. The results showed that the heating speed at the surface of asphalt mixture with induction heating was much higher than that with microwave machine heating, under a similar output power and the same method of radiation. While the temperature distribution within the asphalt mixture under induction heating was quite uneven, microwave heating resulted in a more uniform temperature distribution. The effective heating depth of microwave heating is much higher than that of induction heating. Gradient healing occurred within the sample heated with induction healing, while a uniform healing effect can be achieved with microwave heating.
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