Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Dielectric characterisation of rock aggregates with different grain size distributions
Aggregates largely influence a road's dielectric properties, which is an important physical parameter when using non-destructive methods such as ground penetrating radar to evaluate a road's geometry. Due to the irregular shapes, the direct measurement of an aggregate piece by piece in the microwave domain is not easy. To address this problem, an epoxy-based composite is used to estimate the dielectric constant of the aggregates by resonant test and mixing law calculation. As a water-free binder, the epoxy composite eliminates the water effect on the dielectric properties. Meanwhile, the distribution of each component can be studied by X-ray computed tomography, which allows knowing the composite's morphology. Moreover, the composite has a smooth surface that avoids the texture effects on the dielectric measurement. In addition, the impedance analysis of individual aggregates at low frequencies was used to evaluate the results obtained with composites and mixing laws.
Dielectric characterisation of rock aggregates with different grain size distributions
Aggregates largely influence a road's dielectric properties, which is an important physical parameter when using non-destructive methods such as ground penetrating radar to evaluate a road's geometry. Due to the irregular shapes, the direct measurement of an aggregate piece by piece in the microwave domain is not easy. To address this problem, an epoxy-based composite is used to estimate the dielectric constant of the aggregates by resonant test and mixing law calculation. As a water-free binder, the epoxy composite eliminates the water effect on the dielectric properties. Meanwhile, the distribution of each component can be studied by X-ray computed tomography, which allows knowing the composite's morphology. Moreover, the composite has a smooth surface that avoids the texture effects on the dielectric measurement. In addition, the impedance analysis of individual aggregates at low frequencies was used to evaluate the results obtained with composites and mixing laws.
Dielectric characterisation of rock aggregates with different grain size distributions
Fan, Benhui (Autor:in) / Bosc, Frédéric (Autor:in) / Smaniotto, Benjamin (Autor:in) / Li, Zhong-Sen (Autor:in) / Bai, Jinbo (Autor:in) / Fauchard, Cyrille (Autor:in)
Road Materials and Pavement Design ; 25 ; 776-789
02.04.2024
14 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Process dependence of grain size distributions in rock avalanche deposits
| British Library Online Contents | 2017
Grain-Size Distribution of Mixed Aggregates
| Online Contents | 1996
Grain-Size Distribution of Mixed Aggregates
| British Library Online Contents | 1996
On the grain size distributions obtained from different grain growth simulation techniques
| British Library Online Contents | 2004
On the grain size distributions obtained from different grain growth simulation techniques
| British Library Online Contents | 2004