A study of the influence of coarse aggregate shape characteristics on permanent deformation of asphalt mixes.

dc.contributor.authorMabuse, M.M.
dc.contributor.authorAnochie-Boateng, Joseph K.
dc.contributor.authorNdambuki, J.M.
dc.contributor.editorBehrens, Roger.
dc.contributor.editorCameron, Bill.
dc.contributor.editorFroschauer, Pauline.
dc.contributor.emailmmabuse@agrement.co.zaen_US
dc.contributor.otherSouthern African Transport Conference (32nd : 2013 : Pretoria, South Africa)
dc.contributor.otherMinister of Transport, South Africa
dc.contributor.upauthorKomba, Julius Joseph
dc.date.accessioned2014-02-04T09:23:48Z
dc.date.available2014-02-04T09:23:48Z
dc.date.created2013-07-08
dc.date.issuedJuly 2013en_US
dc.descriptionThis paper was transferred from the original CD ROM created for this conference. The material was published using Adobe Acrobat 10.1.0 Technology. The original CD ROM was produced by Document Transformation Technologies Postal Address: PO Box 560 Irene 0062 South Africa. Tel.: +27 12 667 2074 Fax: +27 12 667 2766 E-mail: nigel@doctech URL: http://www.doctech.co.zaen_US
dc.description.abstractPaper presented at the 32nd Annual Southern African Transport Conference 8-11 July 2013 "Transport and Sustainable Infrastructure", CSIR International Convention Centre, Pretoria, South Africa.en_US
dc.description.abstractThe effect of aggregate shape properties such as angularity, texture, sphericity, roundness, flat and elongation on the performance of asphalt mixes have not been thoroughly investigated using direct measurement techniques. This is partly because aggregates do not have regular shapes, and it is a daunting task to accurately determine these properties. In this paper, three types of aggregates are used to produce asphalt mixes in order to study the effect of coarse aggregate shape properties on the permanent deformation. A modern three-dimensional (3-D) laser scanning device available at the Council for Scientific and Industrial Research (CSIR) in South Africa was used to directly obtained shape properties of the aggregates. Permanent deformation tests were conducted in the laboratory on three different mixes produced from the aggregates to compare performance. It was found that the three asphalt mixes have different resistance to permanent formation. The aggregates with high surface texture and angularity improve resistance to permanent deformation of the asphalt mix when compared with those with more rounded or spherical shapes.en_US
dc.description.librarianmv2014en_US
dc.format.extent13 p.en_US
dc.format.mediumPDFen_US
dc.identifier.isbn978-1-920017-62-0
dc.identifier.urihttp://hdl.handle.net/2263/33259
dc.language.isoenen_US
dc.relation.ispartofSATC 2013en_US
dc.rightsUniversity of Pretoriaen_US
dc.subjectAggregate shapeen_US
dc.subjectCSIRen_US
dc.subjectThree-dimensional (3-D) laser scanning deviceen_US
dc.subject.lcshTransportationen_US
dc.subject.lcshTransportation -- Africaen_US
dc.subject.lcshTransportation -- Southern Africaen_US
dc.titleA study of the influence of coarse aggregate shape characteristics on permanent deformation of asphalt mixes.en_US
dc.typePresentationen_US

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