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Title: Preparation and Properties of Microwave-Absorbing Asphalt Mixtures Containing Graphite and Magnetite Powder
Accession Number: 01698413
Record Type: Component
Abstract: The concept of microwave-absorbing asphalt concrete (MAAC) has been proposed to create an asphalt mixture with high microwave heating efficiency. The 20% graphite powder and 80% magnetite powder were used as the microwave-absorbing composite to replace the common mineral filler in the asphalt mixtures to improve its microwave absorption capacity. This research aimed to evaluate the effects of proposed absorbent composite on the properties and the microwave heating efficiency of asphalt mixtures. The results indicate that adding graphite and magnetite powder exhibited an improvement in the microwave heating efficiency of asphalt mixtures. The heating rate of asphalt mastic was improved more than ten times higher while the heating rate of the mixtures containing the absorbent composite was improved by 47.8%. The pavement performance test results showed that the technical performance indexes can meet the relevant specification requirements.
Supplemental Notes: This paper was sponsored by TRB committee AFK10 Standing Committee on Critical Issues and Emerging Technologies in Asphalt.
Report/Paper Numbers: 19-00196
Language: English
Corporate Authors: Transportation Research BoardAuthors: Wu, ShuyinYang, JunYang, RuochongZhu, JipengPagination: 5p
Publication Date: 2019
Conference:
Transportation Research Board 98th Annual Meeting
Location:
Washington DC, United States Media Type: Digital/other
Features: Figures; References; Tables
TRT Terms: Uncontrolled Terms: Subject Areas: Highways; Materials; Pavements
Source Data: Transportation Research Board Annual Meeting 2019 Paper #19-00196
Files: TRIS, TRB, ATRI
Created Date: Dec 7 2018 9:25AM
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