Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Controlling Conductivity of Asphalt Concrete With Graphite
Electrically conductive asphalt concrete has a huge potential for various multifunctional applications such as self-healing, self-sensing, and deicing. In order to utilize the full spectrum of applications of electrically conductive asphalt composites, precise control of the asphalt mixture resistivity is needed. Most of the previous research using conductive fibers as the primary conductive additives observed a sudden transition from the insulated to conductive phase, commonly known as the percolation threshold, which obstructs more precise conductivity control. Aiming to control the electrical conductivity of asphalt concrete with a smooth transition from the insulated to conductive phase, the researchers have selected graphite powders as an alternative conductive additive in this study. Nine types of graphite having different particle shape, size, and origin were mixed with asphalt binders, and their effects on imparting conductivity were investigated. Based on the results, the research team selected two types of graphite and evaluated the effects on the electrical conductivity of asphalt concrete. The team also examined the effects of aggregate gradation, binder content, and binder type.
Controlling Conductivity of Asphalt Concrete With Graphite
Electrically conductive asphalt concrete has a huge potential for various multifunctional applications such as self-healing, self-sensing, and deicing. In order to utilize the full spectrum of applications of electrically conductive asphalt composites, precise control of the asphalt mixture resistivity is needed. Most of the previous research using conductive fibers as the primary conductive additives observed a sudden transition from the insulated to conductive phase, commonly known as the percolation threshold, which obstructs more precise conductivity control. Aiming to control the electrical conductivity of asphalt concrete with a smooth transition from the insulated to conductive phase, the researchers have selected graphite powders as an alternative conductive additive in this study. Nine types of graphite having different particle shape, size, and origin were mixed with asphalt binders, and their effects on imparting conductivity were investigated. Based on the results, the research team selected two types of graphite and evaluated the effects on the electrical conductivity of asphalt concrete. The team also examined the effects of aggregate gradation, binder content, and binder type.
Controlling Conductivity of Asphalt Concrete With Graphite
P. Park (Autor:in) / Y. Rew (Autor:in) / A. Baranikumar (Autor:in)
2014
106 pages
Report
Keine Angabe
Englisch
Construction Equipment, Materials, & Supplies , Highway Engineering , Materials Sciences , Asphalts , Concretes , Electric conductivity , Aggregates , Binders , Composite materials , Deicing , Electron microscopy , Fabrication , Gradation , Graphite , Mixtures , Pavements , Percolation , Threshold current
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