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dc.date.accessioned2022-01-03T16:02:05Z
dc.date.available2022-01-03T16:02:05Z
dc.date.issued2021-09-25
dc.identifierdoi:10.17170/kobra-202112215303
dc.identifier.urihttp://hdl.handle.net/123456789/13478
dc.description.sponsorshipGefördert durch den Publikationsfonds der Universität Kasselger
dc.language.isoengeng
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectdesign of experimentseng
dc.subjectPortland cement clinkereng
dc.subjectfine ground clinkereng
dc.subjectsulphate optimizationeng
dc.subjectC-S-H-seedseng
dc.subject.ddc620
dc.subject.ddc660
dc.titleUse of Design of Experiments (DoE) to Model the Sulphate Agent Amount of (Ultra)Finely Ground and Fast Hardening Portland Cement Clinkereng
dc.typeAufsatz
dcterms.abstractThis paper presents a model to calculate the sulphate agent amount and sulphate agent ratio for fine grounded and fast hardening Portland cement clinker. Despite sufficient knowledge about the influence of calcium sulphate on the hydration process of cement, the sulphate agent amount is mostly adjusted empirically. As a result, often a wide and unfeasible experimental matrix has to be tested. In this work, Design of Experiments (DoE) was used in combination with in-situ X-ray diffraction (XRD) tests to accurately adjust the sulphate agent of different finely ground cement by calculation. With only 42 tests, it was possible to analyse in total the influence of the sulphate agent, the grinding fineness and the use of C-S-H-seeds for the use in fast-hardening Portland cement-based systems. In addition, it was found that a hemihydrate to anhydrite content of 25/75 leads to a stabilisation of the hydrated system in the first 24 h of hydration. A model for the optimisation of the sulphate agent composition in dependency of the cement fineness could be determined. Furthermore, it was shown that the DoE also provides optimal results in material sciences in a resource-saving way.eng
dcterms.accessRightsopen access
dcterms.creatorSchade, Tim
dcterms.creatorMiddendorf, Bernhard
dc.relation.doidoi:10.3390/ma14195573
dc.subject.swdVersuchsplanungger
dc.subject.swdZementklinkerger
dc.subject.swdSulfateger
dc.subject.swdOptimierungger
dc.subject.swdZementger
dc.type.versionpublishedVersion
dcterms.source.identifiereissn:1996-1944
dcterms.source.issueIssue 19
dcterms.source.journalMaterialseng
dcterms.source.volumeVolume 14
kup.iskupfalse
dcterms.source.articlenumber5573


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