Effect of ternary cements containing thermally activated paper sludge and fly ash on the texture of C-S-H gel

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dc.contributor.authorGoñi, S.
dc.contributor.authorFrias, M.
dc.contributor.authorVegas, I.
dc.contributor.authorGarcía, R.
dc.contributor.authorVigil De La Villa, R.
dc.contributor.institutionGENERAL
dc.date.accessioned2024-07-24T12:01:17Z
dc.date.available2024-07-24T12:01:17Z
dc.date.issued2012-05
dc.description.abstractThe texture of the C-S-H gels formed in ternary cement blends containing thermally activated paper sludge (APS), fly ash (FA) from coal combustion and Ordinary Portland Cement (OPC) was studied by means of the specific surface area (SSA) and pore-size distribution (PSD), which were measured by the sorption isotherms of nitrogen gas and the BET method. Two differentiated zones in the PSD of the C-S-H gel at ∼10-20 nm and ∼5 nm were observed. The proportion of such zones depends on the age of hydration and amount of OPC replacement. The incorporation of the additions (APS and FA) clearly revealed an increase in both porosity and SSA. This effect decreased with the progress of hydration together with a refinement of the nano-porous structure of C-S-H. High correlations were found among these nanostructure characteristics of the C-S-H gel and mechanical strengths.en
dc.description.sponsorshipThis work has been supported by the Minister of Science and Technology MAT2009-10874-CO3 and Spanish National Research Council (CSIC) (Ref No. 200460E617). The authors gratefully acknowledge to the Homen Paper Madrid company and Spanish Cement Institute (IECA) for their help in this project.
dc.description.statusPeer reviewed
dc.format.extent8
dc.identifier.citationGoñi , S , Frias , M , Vegas , I , García , R & Vigil De La Villa , R 2012 , ' Effect of ternary cements containing thermally activated paper sludge and fly ash on the texture of C-S-H gel ' , Construction and Building Materials , vol. 30 , pp. 381-388 . https://doi.org/10.1016/j.conbuildmat.2011.12.002
dc.identifier.doi10.1016/j.conbuildmat.2011.12.002
dc.identifier.issn0950-0618
dc.identifier.urihttps://hdl.handle.net/11556/3128
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=84855162658&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofConstruction and Building Materials
dc.relation.projectIDMinister of Science and Technology, MAT2009-10874-CO3
dc.relation.projectIDConsejo Superior de Investigaciones Científicas, CSIC
dc.relation.projectIDComisión Sectorial de Investigación Científica, CSIC, 200460E617
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subject.keywordsBlended cement
dc.subject.keywordsCalcium-silicate-hydrate (C-S-H)
dc.subject.keywordsCompressive strength
dc.subject.keywordsHydration
dc.subject.keywordsSurface area
dc.subject.keywordsCivil and Structural Engineering
dc.subject.keywordsBuilding and Construction
dc.subject.keywordsGeneral Materials Science
dc.titleEffect of ternary cements containing thermally activated paper sludge and fly ash on the texture of C-S-H gelen
dc.typejournal article
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