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Conference Paper: The 3-parameter packing density model with the wedging effect incorporated

TitleThe 3-parameter packing density model with the wedging effect incorporated
Authors
KeywordsPacking density
Particle packing models
Powder technology
Issue Date2012
PublisherBrno University of Technology, Faculty of Civil Engineering.
Citation
The 10th International Scientific Conference People, Building and Environment (PBE 2012), Lednice, Czech Republic, 7-9 November 2012. In Conference Proceedings, 2012, v. 2, p. 188-197 How to Cite?
AbstractA concrete mixture can be regarded as a pack of aggregate particles in a matrix of cement paste. Since the matrix of cement paste is more expensive and less strong and durable than the natural aggregate, maximizing the packing density of aggregate is generally considered a good strategy both to reduce costs and to get an optimized concrete mix in terms of performance. For the sake of concrete mix optimization, it is important to have a particle packing model that can accurately predict the packing density of multi-component particulate systems. For this purpose, the 3-parameter packing density model (3PPM) has been developed. It is a new particle packing model for packing density estimation of multi-component particulate systems, which is modified from the linear packing density model by incorporating the wedging effect. The wedging effect is a particle interaction effect other than the loosening and wall effects, which occurs, for example, when the fine particles are locked at the narrow gaps between the coarse particles. An experimental program of measuring the packing density of binary and ternary mixes of mono-sized spherical glass beads was launched. The model was calibrated from the experimental packing densities of binary mixes. Then, the theoretical packing densities predicted by 3PPM for ternary mixes were compared with the experimental packing densities. With the wedging effect incorporated, the authors believe that 3PPM gives an excellent alternative tool for concrete mix optimization.
DescriptionThe Conference proceedings' website is located at www.fce.vutbr.cz/ekr/pbe/pbe2012_proceedings.pdf
Persistent Identifierhttp://hdl.handle.net/10722/204690
ISBN
ISSN

 

DC FieldValueLanguage
dc.contributor.authorChan, KWen_US
dc.contributor.authorKwan, AKHen_US
dc.contributor.authorWong, Ven_US
dc.date.accessioned2014-09-20T00:23:11Z-
dc.date.available2014-09-20T00:23:11Z-
dc.date.issued2012en_US
dc.identifier.citationThe 10th International Scientific Conference People, Building and Environment (PBE 2012), Lednice, Czech Republic, 7-9 November 2012. In Conference Proceedings, 2012, v. 2, p. 188-197en_US
dc.identifier.isbn978-80-214-4618-2-
dc.identifier.issn1805-6784-
dc.identifier.urihttp://hdl.handle.net/10722/204690-
dc.descriptionThe Conference proceedings' website is located at www.fce.vutbr.cz/ekr/pbe/pbe2012_proceedings.pdf-
dc.description.abstractA concrete mixture can be regarded as a pack of aggregate particles in a matrix of cement paste. Since the matrix of cement paste is more expensive and less strong and durable than the natural aggregate, maximizing the packing density of aggregate is generally considered a good strategy both to reduce costs and to get an optimized concrete mix in terms of performance. For the sake of concrete mix optimization, it is important to have a particle packing model that can accurately predict the packing density of multi-component particulate systems. For this purpose, the 3-parameter packing density model (3PPM) has been developed. It is a new particle packing model for packing density estimation of multi-component particulate systems, which is modified from the linear packing density model by incorporating the wedging effect. The wedging effect is a particle interaction effect other than the loosening and wall effects, which occurs, for example, when the fine particles are locked at the narrow gaps between the coarse particles. An experimental program of measuring the packing density of binary and ternary mixes of mono-sized spherical glass beads was launched. The model was calibrated from the experimental packing densities of binary mixes. Then, the theoretical packing densities predicted by 3PPM for ternary mixes were compared with the experimental packing densities. With the wedging effect incorporated, the authors believe that 3PPM gives an excellent alternative tool for concrete mix optimization.-
dc.languageengen_US
dc.publisherBrno University of Technology, Faculty of Civil Engineering.-
dc.relation.ispartofProceedings of International Scientific Conference People, Buildings and Environment 2012en_US
dc.subjectPacking density-
dc.subjectParticle packing models-
dc.subjectPowder technology-
dc.titleThe 3-parameter packing density model with the wedging effect incorporateden_US
dc.typeConference_Paperen_US
dc.identifier.emailKwan, AKH: khkwan@hkucc.hku.hken_US
dc.identifier.hkuros238059en_US
dc.identifier.volume2-
dc.identifier.spage188en_US
dc.identifier.epage197en_US

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