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dc.contributor.authorXu, Biwan
dc.contributor.authorWinnefeld, Frank
dc.contributor.authorMa, Bin
dc.contributor.authorRentsch, Daniel
dc.contributor.authorLothenbach, Barbara
dc.date.accessioned2023-03-30T06:36:04Z
dc.date.available2023-03-30T06:36:04Z
dc.date.created2022-05-04T14:14:53Z
dc.date.issued2022
dc.identifier.citationCement and Concrete Research. 2022, 156 .en_US
dc.identifier.issn0008-8846
dc.identifier.urihttps://hdl.handle.net/11250/3061007
dc.description.abstractAluminum sulfate shows a positive effect on preventing efflorescence of magnesium potassium phosphate (MKP) cements. Its influence on the MKP cement properties and hydration is explored in this study. Compared to a reference cement (Mg/PO4 molar ratio = 4, w/c ratio = 0.25), aluminum sulfate retards setting, increases compressive strength, and has little influence on the short-term volume stability. Aluminum sulfate slows down the hydration kinetics, decreases the pH values, accelerates the depletion of KH2PO4, and thus mitigates the formation of efflorescence. It also modifies the hydrate assemblage. In addition to K-struvite, aluminum sulfate leads to the formations of arcanite and aluminum-containing hydrates such as amorphous aluminum phosphate, possibly phosphate containing LDH (layered double hydroxide) and minyulite-like phases. The formation of amorphous MgHPO4 and minor amounts of bobierrite and brucite as observed in the reference paste, are suppressed in the presence of aluminum.en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleInfluence of aluminum sulfate on properties and hydration of magnesium potassium phosphate cementsen_US
dc.title.alternativeInfluence of aluminum sulfate on properties and hydration of magnesium potassium phosphate cementsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionpublishedVersionen_US
dc.source.pagenumber20en_US
dc.source.volume156en_US
dc.source.journalCement and Concrete Researchen_US
dc.identifier.doi10.1016/j.cemconres.2022.106788
dc.identifier.cristin2021473
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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