Discrete Element Modelling of Influences of Grain Shape and Angularity on Performance of Granular Mixes for Asphalts
The greater part of asphalt mixtures is composed of aggregates. This means that particular features, such as shape and angularity, are the primary factors that affect the development of the mechanical performance of asphalt pavements. In order to investigate the combined effect of grain shape and angularity on the packing and stability of an aggregate's assembly for asphalt mixes, the authors have performed an experimental program using 3D Discrete Element Method. The results obtained from triaxial tests and from statistical analysis of the distribution of particle-particle contact forces show that the grain shape and angularity significantly affect the assembly behaviour.
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/18770428
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Supplemental Notes:
- Abstract reprinted with permission from Elsevier.
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Authors:
- Dondi, Giulio
- Simone, Andrea
- Vignali, Valeria
- Manganelli, Giulia
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Conference:
- SIIV-5th International Congress - Sustainability of Road Infrastructures 2012
- Location: Rome , Italy
- Date: 2012-10-29 to 2012-10-31
- Publication Date: 2012-10-3
Language
- English
Media Info
- Media Type: Digital/other
- Features: Figures; Photos; References; Tables;
- Pagination: pp 399-409
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Serial:
- Procedia - Social and Behavioral Sciences
- Volume: 53
- Issue Number: 0
- Publisher: Elsevier
- ISSN: 1877-0428
- Serial URL: http://www.sciencedirect.com/science/journal/18770428/53
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Publication flags:
Open Access (libre)
Subject/Index Terms
- TRT Terms: Aggregates; Angularity; Asphalt mixtures; Grain shape (Geology); Triaxial shear tests
- Uncontrolled Terms: Discrete element method
- Subject Areas: Highways; Materials; Pavements; I31: Bituminous Binders and Materials; I36: Aggregates;
Filing Info
- Accession Number: 01485612
- Record Type: Publication
- Files: TRIS
- Created Date: Jun 27 2013 2:38PM