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Statistical analysis of Portuguese ready-mixed concrete production

2019-06-10Journal article Restricted access
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dc.contributor.authorPacheco, João
dc.contributor.authorDe Brito, Jorge
dc.contributor.authorChastre, Carlos
dc.contributor.authorEvangelista, Luis
dc.date.accessioned2019-07-22T08:35:38Z
dc.date.available2019-07-22T08:35:38Z
dc.date.issued2019-06-10
dc.description.abstractThis paper evaluates and compares the statistics of compressive strength data from three Portuguese ready-mixed concrete plants. A hierarchical model showed that different groups of concrete strength records are not statistically equivalent, even if they were produced in the same plant and using the same concrete composition. This finding is related to autocorrelation. For the same specified strength class, compositions produced less often result in higher average compressive strength and variability. The statistics of one of the plants were quite different from those of the others, even though the concrete of this plant also complied with the specifications. It was found that the average compressive strength of a mix may be quite dependent on the plant that produced it, even if the compressive strength complies with quality control specifications. Conformity with the target slump and strength class was checked following the conformity criteria of EN 206-1 for continuous production. Nonconformity with slump is more frequent than failure to comply with the strength class. A bias factor for reliability analyses was proposed.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationPACHECO, João Nuno; [et al] – Statistical analysis of Portuguese ready-mixed concrete production. Construction and Building Materials. ISSN 0950-0618. Vol. 209 (2019), pp. 283-294pt_PT
dc.identifier.doi10.1016/j.conbuildmat.2019.03.089pt_PT
dc.identifier.issn0950-0618
dc.identifier.issn1879-0526
dc.identifier.urihttp://hdl.handle.net/10400.21/10346
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationPD/BD/113643/2015 - EcoCoRe doctoral programme of the Portuguese Foundation for Science and Technology (FCT)pt_PT
dc.subjectReady-mixed concretept_PT
dc.subjectVariabilitypt_PT
dc.subjectProbabilistic analysispt_PT
dc.subjectConformity controlpt_PT
dc.titleStatistical analysis of Portuguese ready-mixed concrete productionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage294pt_PT
oaire.citation.startPage283pt_PT
oaire.citation.titleConstruction and Building Materialspt_PT
oaire.citation.volume209pt_PT
person.familyNamePacheco
person.familyNameCaliço Lopes de Brito
person.familyNameChastre
person.familyNameFaria Rocha Evangelista
person.givenNameJoão
person.givenNameJorge Manuel
person.givenNameCarlos
person.givenNameLuís Manuel
person.identifier1007584
person.identifierA-4299-2008
person.identifierB-9864-2011
person.identifier.ciencia-idD414-B33B-01E0
person.identifier.ciencia-id921D-3921-8308
person.identifier.ciencia-idA612-1A5B-D93D
person.identifier.orcid0000-0001-9348-1226
person.identifier.orcid0000-0001-6766-2736
person.identifier.orcid0000-0002-7708-6995
person.identifier.orcid0000-0001-8406-6864
person.identifier.ridR-2558-2016
person.identifier.ridC-6746-2008
person.identifier.scopus-author-id56800010700
person.identifier.scopus-author-id7003285554
person.identifier.scopus-author-id36008057200
person.identifier.scopus-author-id57201241744
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublicationebc80e57-531a-4fe5-ac87-4d8382b7de2e
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relation.isAuthorOfPublication.latestForDiscovery72875b42-767e-4153-a2ec-1fc07cab3918

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