Dielectric characterisation of asphalt mortars for microwave heating applications

被引:16
|
作者
Gulisano, Federico [1 ]
Gallego, Juan [1 ]
Trigos, Laura [2 ]
Apaza Apaza, Freddy Richard [1 ]
机构
[1] Univ Politecn Madrid, Dept Ingn Transporte Terr & Urbanismo, C Prof Aranguren 3, Madrid 28040, Spain
[2] Univ Politecn Madrid, Dept Ingn & Morfol Terreno, C Prof Aranguren 3, Madrid 28040, Spain
关键词
Microwave heating; Asphalt mixture; Dielectric properties; Sustainability; HEALING PROPERTIES; STEEL SLAG; MIXTURES;
D O I
10.1016/j.conbuildmat.2021.125048
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Microwave (MW) heating could contribute to the sustainability of the construction and maintenance of asphalt pavements. The relationship between frequency and the dielectric properties (i.e. loss factor and penetration depth) is crucial for maximising the MW heating efficiency. The paper aims to study the dielectric properties of conventional and electric arc furnace (EAF) slag asphalt mortars. Results showed that the addition of EAF slag enhanced the dielectric response of asphalt mortars. Moreover, a frequency of 5.8 GHz seems to be the best choice for deicing application and assisted-healing of surface layers up to 7 cm.
引用
收藏
页数:8
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