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Conference Paper: Fundamental mechanics of asphalt compaction through FEM and DEM modeling

TitleFundamental mechanics of asphalt compaction through FEM and DEM modeling
Authors
Issue Date2007
Citation
Geotechnical Special Publication, 2007 n. 176, p. 45-63 How to Cite?
AbstractThe compaction of asphalt concrete is the last step in controlling the quality of pavement. Tremendous information on the mixture's characteristics, segregation, and fundamental properties of asphalt concrete demonstrates itself in the compaction process. An understanding of the fundamental mechanisms of compaction will help better control the quality of asphalt concrete pavement. This paper presents the investigation of the compaction mechanics using both Finite Element Method (FEM) and Discrete Element Method (DEM). The FEM simulation adopted a porous viscoplasticity model, which considers the compaction in the view of its air void reduction resulted from the squeezing of aggregates and mastics. The DEM simulations provide a view of considering the compaction a process in which aggregate particles translate and rotate to positions forming denser packing. By this approach, particle shape and binder stiffness factors can be considered. The simulation results indicate that both approaches can describe the compaction phenomena consistently with field observations and empirical experience. Copyright ASCE 2007.
Persistent Identifierhttp://hdl.handle.net/10722/152153
ISSN

 

DC FieldValueLanguage
dc.contributor.authorWang, Len_US
dc.contributor.authorZhang, Ben_US
dc.contributor.authorWang, Den_US
dc.contributor.authorYue, Zen_US
dc.date.accessioned2012-06-26T06:35:37Z-
dc.date.available2012-06-26T06:35:37Z-
dc.date.issued2007en_US
dc.identifier.citationGeotechnical Special Publication, 2007 n. 176, p. 45-63en_US
dc.identifier.issn0895-0563en_US
dc.identifier.urihttp://hdl.handle.net/10722/152153-
dc.description.abstractThe compaction of asphalt concrete is the last step in controlling the quality of pavement. Tremendous information on the mixture's characteristics, segregation, and fundamental properties of asphalt concrete demonstrates itself in the compaction process. An understanding of the fundamental mechanisms of compaction will help better control the quality of asphalt concrete pavement. This paper presents the investigation of the compaction mechanics using both Finite Element Method (FEM) and Discrete Element Method (DEM). The FEM simulation adopted a porous viscoplasticity model, which considers the compaction in the view of its air void reduction resulted from the squeezing of aggregates and mastics. The DEM simulations provide a view of considering the compaction a process in which aggregate particles translate and rotate to positions forming denser packing. By this approach, particle shape and binder stiffness factors can be considered. The simulation results indicate that both approaches can describe the compaction phenomena consistently with field observations and empirical experience. Copyright ASCE 2007.en_US
dc.languageengen_US
dc.relation.ispartofGeotechnical Special Publicationen_US
dc.titleFundamental mechanics of asphalt compaction through FEM and DEM modelingen_US
dc.typeConference_Paperen_US
dc.identifier.emailYue, Z:yueqzq@hkucc.hku.hken_US
dc.identifier.authorityYue, Z=rp00209en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1061/40924(308)5en_US
dc.identifier.scopuseid_2-s2.0-40449115511en_US
dc.identifier.issue176en_US
dc.identifier.spage45en_US
dc.identifier.epage63en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridWang, L=8425506800en_US
dc.identifier.scopusauthoridZhang, B=51562993200en_US
dc.identifier.scopusauthoridWang, D=51562740500en_US
dc.identifier.scopusauthoridYue, Z=7102782735en_US

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