Analysis of cubic and orthorhombic C3A hydration in presence of gypsum and lime

Handle URI:
http://hdl.handle.net/10754/597555
Title:
Analysis of cubic and orthorhombic C3A hydration in presence of gypsum and lime
Authors:
Kirchheim, A. P.; Fernàndez-Altable, V.; Monteiro, P. J. M.; Dal Molin, D. C. C.; Casanova, I.
Abstract:
Field emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) have been used to study the microstructural changes and phase development that take place during the hydration of cubic (pure) and orthorhombic (Na-doped) tricalcium aluminate (C3A) and gypsum in the absence and presence of lime. The results demonstrate that important differences occur in the hydration of each C3A polymorph and gypsum when no lime is added; orthorhombic C3A reacts faster with gypsum than the cubic phase, forming longer ettringite needles; however, the presence of lime slows down the formation of ettringite in the orthorhombic sample. Additional rheometric tests showed the possible effects on the setting time in these cementitious mixes.
Citation:
Kirchheim AP, Fernàndez-Altable V, Monteiro PJM, Dal Molin DCC, Casanova I (2009) Analysis of cubic and orthorhombic C3A hydration in presence of gypsum and lime. Journal of Materials Science 44: 2038–2045. Available: http://dx.doi.org/10.1007/s10853-009-3292-3.
Publisher:
Springer Nature
Journal:
Journal of Materials Science
Issue Date:
26-Feb-2009
DOI:
10.1007/s10853-009-3292-3
Type:
Article
ISSN:
0022-2461; 1573-4803
Sponsors:
The authors acknowledge the financial support of CAPES (Fundacao Coordenacao de Aperfeic, oamento de Pessoal de Nivel Superior - Ministerio da Educacao - Brasil) and CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Ministerio da Ciencia e Tecnologia - Brasil). Also we are grateful to the staff of Electron Microscope Laboratory at University of California, Berkeley for helping in the acquisition of the images, and Oscar Reyes, from Technical University of Catalonia (UPC) on the rheological measurements. The research was supported by the National Science Foundation (grant CMS- 981275) and KAUST.
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Full metadata record

DC FieldValue Language
dc.contributor.authorKirchheim, A. P.en
dc.contributor.authorFernàndez-Altable, V.en
dc.contributor.authorMonteiro, P. J. M.en
dc.contributor.authorDal Molin, D. C. C.en
dc.contributor.authorCasanova, I.en
dc.date.accessioned2016-02-25T12:41:58Zen
dc.date.available2016-02-25T12:41:58Zen
dc.date.issued2009-02-26en
dc.identifier.citationKirchheim AP, Fernàndez-Altable V, Monteiro PJM, Dal Molin DCC, Casanova I (2009) Analysis of cubic and orthorhombic C3A hydration in presence of gypsum and lime. Journal of Materials Science 44: 2038–2045. Available: http://dx.doi.org/10.1007/s10853-009-3292-3.en
dc.identifier.issn0022-2461en
dc.identifier.issn1573-4803en
dc.identifier.doi10.1007/s10853-009-3292-3en
dc.identifier.urihttp://hdl.handle.net/10754/597555en
dc.description.abstractField emission scanning electron microscopy (FE-SEM) and X-ray diffraction (XRD) have been used to study the microstructural changes and phase development that take place during the hydration of cubic (pure) and orthorhombic (Na-doped) tricalcium aluminate (C3A) and gypsum in the absence and presence of lime. The results demonstrate that important differences occur in the hydration of each C3A polymorph and gypsum when no lime is added; orthorhombic C3A reacts faster with gypsum than the cubic phase, forming longer ettringite needles; however, the presence of lime slows down the formation of ettringite in the orthorhombic sample. Additional rheometric tests showed the possible effects on the setting time in these cementitious mixes.en
dc.description.sponsorshipThe authors acknowledge the financial support of CAPES (Fundacao Coordenacao de Aperfeic, oamento de Pessoal de Nivel Superior - Ministerio da Educacao - Brasil) and CNPq (Conselho Nacional de Desenvolvimento Cientifico e Tecnologico Ministerio da Ciencia e Tecnologia - Brasil). Also we are grateful to the staff of Electron Microscope Laboratory at University of California, Berkeley for helping in the acquisition of the images, and Oscar Reyes, from Technical University of Catalonia (UPC) on the rheological measurements. The research was supported by the National Science Foundation (grant CMS- 981275) and KAUST.en
dc.publisherSpringer Natureen
dc.titleAnalysis of cubic and orthorhombic C3A hydration in presence of gypsum and limeen
dc.typeArticleen
dc.identifier.journalJournal of Materials Scienceen
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul, Porto Alegre, Brazilen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
dc.contributor.institutionEcole Polytechnique Federale de Lausanne, Lausanne, Switzerlanden
dc.contributor.institutionCentre for Research in NanoEngineering, Barcelona, Spainen
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