Publication:
Comparison of solidification/stabilization effects of calcite between Australian and South Korean cements

dc.contributor.author Lee, Dongjun en_US
dc.contributor.author Waite, David en_US
dc.contributor.author Swarbrick, Gareth en_US
dc.contributor.author Lee, S en_US
dc.date.accessioned 2021-11-25T14:16:21Z
dc.date.available 2021-11-25T14:16:21Z
dc.date.issued 2005 en_US
dc.description.abstract The differences in the effect of calcite on the strength and stability of Pb-rich wastes solidified and stabilized using Australian and South Korean ordinary Portland cements are examined in this study. Pb-rich waste stabilized using Australian OPC has been shown to possess both substantially higher unconfined compressive strength and lead immobilization ability than South Korean OPC as a result of its higher C3S content and the associated enhanced degree of precipitation of lead on the surfaces of silicate phases present. Calcite addition is observed to have an accelerating effect on the OPC-induced solidification/stabilization of Pb-rich wastes as gauged by the unconfined compressive strength and leachability of the solids formed. This effect is observed to be far more dramatic for South Korean OPC than for Australian OPC. Using scanning electron microscopy, waste stabilized with cement and calcite was observed to develop significantly greater proportions of hydrated crystals than wastes stabilized with cement alone. The results of X-ray diffraction studies have shown that the presence of calcite in South Korean OPC results in greater acceleration in the formation of portlandite than is the case for Australian OPC. en_US
dc.identifier.issn 0008-8846 en_US
dc.identifier.uri http://hdl.handle.net/1959.4/42320
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/3.0/au/ en_US
dc.source Legacy MARC en_US
dc.subject.other Portland cement en_US
dc.subject.other CaCO3 en_US
dc.subject.other Lead en_US
dc.subject.other Compressive strength en_US
dc.subject.other Compressive strength en_US
dc.title Comparison of solidification/stabilization effects of calcite between Australian and South Korean cements en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.accessRights.uri http://purl.org/coar/access_right/c_14cb
unsw.relation.faculty Engineering
unsw.relation.ispartofissue 11 en_US
unsw.relation.ispartofjournal Cement and Concrete Research en_US
unsw.relation.ispartofpagefrompageto 2143-2157 en_US
unsw.relation.ispartofvolume 35 en_US
unsw.relation.originalPublicationAffiliation Lee, Dongjun, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Waite, David, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Swarbrick, Gareth, Civil & Environmental Engineering, Faculty of Engineering, UNSW en_US
unsw.relation.originalPublicationAffiliation Lee, S en_US
unsw.relation.school School of Civil and Environmental Engineering *
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