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Apr 21, 2012
Microstructure and Performance Analysis of Nanomaterials Modified Asphalt
Authors: Hui Yao [email protected], Liang Li [email protected], Hua Xie [email protected], Han-Cheng Dan [email protected], and Xiao-Li Yang [email protected]Author Affiliations
Publication: Road Materials and New Innovations in Pavement Engineering
Abstract
Nanomaterials have been generally applied in all fields all over the world, because of their distinctive physical and chemical characteristics. In order to improve the properties of asphalt and asphalt mixtures, the selection of nanometer materials for modifying the base asphalt was processed. Furthermore, a series of asphalt experiments were performed to analyze the basic performance of these asphalt with varying nanometer material contents. The tests included penetration, ductility, softening point, viscosity and atomic force microscope (AFM). Property comparison between modified asphalt and base asphalt was undertaken. Additionally, AFM images of modified asphalt at the optimum nanomaterials content were presented, which indicated that 2% carbon nano powders modified asphalt has an excellent uniformity structure in the base asphalt compared with microstructures of the other nanomaterials modified asphalt. Besides, mechanical performance tests of asphalt mixtures were carried out, and showed that the properties of nanomaterial modified asphalt were superior to those of the base asphalt.
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© 2011 American Society of Civil Engineers.
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Published online: Apr 21, 2012
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Doctoral Candidate, School of civil engineering and architecture, Central South University, Changsha, Hunan Province, People's Republic of China.E-mail: [email protected]
Professor, School of civil engineering and architecture, Central South University, Changsha, Hunan Province, People's Republic of China.E-mail: [email protected]
Doctoral Candidate, Hole School of Construction, Department of Civil and Environmental Engineering, 5-080 Markin/CNRL Natural Resources Engineering Facility, University of Alberta, Edmonton, AB, Canada.E-mail: [email protected]
Doctoral Candidate, School of civil engineering and architecture, Central South University, Changsha, Hunan Province, People's Republic of China.E-mail: [email protected]
Professor, School of civil engineering and architecture, Central South University, Changsha, Hunan Province, People's Republic of China.E-mail: [email protected]
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