Design a Thermosetting Asphalt Mixture for Surfacing on Orthotropic Steel Deck Bridge

Chun Chen; Zhen Dong Qian; Yong Quan Wang

doi:10.4028/www.scientific.net/AMR.652-654.1221

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 652-654Design a Thermosetting Asphalt Mixture for...

Design a Thermosetting Asphalt Mixture for Surfacing on Orthotropic Steel Deck Bridge

Abstract:

According to Superpave mix design method, a thermosetting material (Epoxy Asphalt mixture) was designed for surfacing on orthotropic steel deck bridge. Firstly, based on the thermosetting feature, the viscosity increasing law of EA binder was studied by Brookfield test. Then, some characteristic indexes of EA mixture, such as the prior mixing time and the reserved time, were determined according to the viscosity increasing law and recommended viscosity range for mixing and compaction. Finally, using these characteristic indexes, an EA mixture with 3.0% air voids was designed by volumetric mixture design procedure of Superpave method. The results show: 1) different from other asphalt mixtures, the characteristic indexes of end mixing time and reserved time should be applied in EA mixture design because of the thermosetting character of EA binder; 2) the EA mixture designed by Superpave method in this paper has a higher EA binder content than that designed by conventional Marshall method.

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Periodical:

Advanced Materials Research (Volumes 652-654)

Pages:

1221-1225

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.652-654.1221

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Online since:

January 2013

Authors:

Chun Chen, Zhen Dong Qian, Yong Quan Wang

Keywords:

Epoxy Asphalt, Orthotropic Steel Deck, Superpave Test Method, Viscosity Increasing Law

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