Evaluation of the response behaviour of unconfined cemented materials under dynamic loading

dc.contributor.authorMatheba, M.J.
dc.contributor.authorSteyn, Wynand Jacobus Van der Merwe
dc.contributor.authorMoloisane, R.J.
dc.contributor.authorMilne, T.I.
dc.contributor.emailwynand.steyn@up.ac.zaen_ZA
dc.date.accessioned2016-02-19T04:58:22Z
dc.date.available2016-02-19T04:58:22Z
dc.date.issued2015-09
dc.description.abstractThere is a significant increase in traffic loading on most roads in the developing African countries, and South Africa is one of them. Often this increased traffic loading results in the premature failure of pavement structures. Mechanistic-empirical (M-E) design methods based on fundamental principles are better able to accommodate changes in the design environment. The successful use of design methods depends on the accuracy of the input material parameters. Therefore, as design is moving towards M-E design methods, there is a need for the material parameters to reflect the actual pavement response to dynamic loads. The objective of this paper is to report on the investigation of the response of cement-stabilised sub-base layers to dynamic load by evaluating stiffness at a known strain level. This stiffness was compared with those derived from unconfined compressive strength (UCS) tests performed at static load. The strain and stiffness values were also evaluated against compacted density, cement content, moisture content and material type. It was found that stiffness of some of the cement-stabilised sub-base layers may possibly be overestimated through the use of static loads.en_ZA
dc.description.librarianhb2015en_ZA
dc.description.sponsorshipTshwane University of Technology, the National Department of Transport’s Northern Transportation Centre of Development, Geostrada Materials Engineering Laboratory and Aurecon.en_ZA
dc.description.urihttp://www.journals.co.za/ej/ejour_civileng.htmlen_ZA
dc.identifier.citationMatheba, MJ, Steyn, WJvd M, Moloisane, RJ & Milne, TI 2015, 'Evaluation of the response behaviour of unconfined cemented materials under dynamic loading', Journal of the South African Institution of Civil Engineering = Joernaal van die Suid-Afrikaanse Instituut van Siviele Ingenieurswese, vol. 57, no. 3, art. #1156, pp. 26-34.en_ZA
dc.identifier.issn1021-2019
dc.identifier.other10.17159/2309-8775/2015/v57n3a4
dc.identifier.urihttp://hdl.handle.net/2263/51461
dc.language.isoenen_ZA
dc.publisherSouth African Institution of Civil Engineeringen_ZA
dc.rightsSouth African Institution of Civil Engineeringen_ZA
dc.subjectEvaluationen_ZA
dc.subjectResponse behaviouren_ZA
dc.subjectPavement structuresen_ZA
dc.subjectDynamic loadingen_ZA
dc.subject.otherEngineering, built environment and information technology articles SDG-09
dc.subject.otherSDG-09: Industry, innovation and infrastructure
dc.subject.otherEngineering, built environment and information technology articles SDG-11
dc.subject.otherSDG-11: Sustainable cities and communities
dc.titleEvaluation of the response behaviour of unconfined cemented materials under dynamic loadingen_ZA
dc.typeArticleen_ZA

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