High-volume natural volcanic pozzolan and limestone powder as partial replacements for portland cement in self-compacting and sustainable concrete

Handle URI:
http://hdl.handle.net/10754/563287
Title:
High-volume natural volcanic pozzolan and limestone powder as partial replacements for portland cement in self-compacting and sustainable concrete
Authors:
Celik, Kemal; Jackson, Marie D.; Mancio, Mauricio; Meral, Cagla; Emwas, Abdul-Hamid M.; Mehta, P. Kumar; Monteiro, Paulo José Meleragno
Abstract:
A laboratory study demonstrates that high volume, 45% by mass replacement of portland cement (OPC) with 30% finely-ground basaltic ash from Saudi Arabia (NP) and 15% limestone powder (LS) produces concrete with good workability, high 28-day compressive strength (39 MPa), excellent one year strength (57 MPa), and very high resistance to chloride penetration. Conventional OPC is produced by intergrinding 95% portland clinker and 5% gypsum, and its clinker factor (CF) thus equals 0.95. With 30% NP and 15% LS portland clinker replacement, the CF of the blended ternary PC equals 0.52 so that 48% CO2 emissions could be avoided, while enhancing strength development and durability in the resulting self-compacting concrete (SCC). Petrographic and scanning electron microscopy (SEM) investigations of the crushed NP and finely-ground NP in the concretes provide new insights into the heterogeneous fine-scale cementitious hydration products associated with basaltic ash-portland cement reactions. © 2013 Published by Elsevier Ltd.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab
Publisher:
Elsevier BV
Journal:
Cement and Concrete Composites
Issue Date:
Jan-2014
DOI:
10.1016/j.cemconcomp.2013.09.003
Type:
Article
ISSN:
09589465
Sponsors:
We thank Super Burkani Blocks for providing crushed and finely-ground basaltic volcanic ash. This research was funded in part by Award No. KUS-l1-004021, from King Abdullah University of Science and Technology (KAUST). Mr. Timothy Teague provided valuable laboratory assistance.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorCelik, Kemalen
dc.contributor.authorJackson, Marie D.en
dc.contributor.authorMancio, Mauricioen
dc.contributor.authorMeral, Caglaen
dc.contributor.authorEmwas, Abdul-Hamid M.en
dc.contributor.authorMehta, P. Kumaren
dc.contributor.authorMonteiro, Paulo José Meleragnoen
dc.date.accessioned2015-08-03T11:44:55Zen
dc.date.available2015-08-03T11:44:55Zen
dc.date.issued2014-01en
dc.identifier.issn09589465en
dc.identifier.doi10.1016/j.cemconcomp.2013.09.003en
dc.identifier.urihttp://hdl.handle.net/10754/563287en
dc.description.abstractA laboratory study demonstrates that high volume, 45% by mass replacement of portland cement (OPC) with 30% finely-ground basaltic ash from Saudi Arabia (NP) and 15% limestone powder (LS) produces concrete with good workability, high 28-day compressive strength (39 MPa), excellent one year strength (57 MPa), and very high resistance to chloride penetration. Conventional OPC is produced by intergrinding 95% portland clinker and 5% gypsum, and its clinker factor (CF) thus equals 0.95. With 30% NP and 15% LS portland clinker replacement, the CF of the blended ternary PC equals 0.52 so that 48% CO2 emissions could be avoided, while enhancing strength development and durability in the resulting self-compacting concrete (SCC). Petrographic and scanning electron microscopy (SEM) investigations of the crushed NP and finely-ground NP in the concretes provide new insights into the heterogeneous fine-scale cementitious hydration products associated with basaltic ash-portland cement reactions. © 2013 Published by Elsevier Ltd.en
dc.description.sponsorshipWe thank Super Burkani Blocks for providing crushed and finely-ground basaltic volcanic ash. This research was funded in part by Award No. KUS-l1-004021, from King Abdullah University of Science and Technology (KAUST). Mr. Timothy Teague provided valuable laboratory assistance.en
dc.publisherElsevier BVen
dc.subjectBasaltic ash pozzolanen
dc.subjectChloride migrationen
dc.subjectCompressive strengthen
dc.subjectLimestone filleren
dc.subjectPetrographic analysisen
dc.subjectSelf-consolidating concreteen
dc.titleHigh-volume natural volcanic pozzolan and limestone powder as partial replacements for portland cement in self-compacting and sustainable concreteen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.identifier.journalCement and Concrete Compositesen
dc.contributor.institutionDepartment of Civil and Environmental Engineering, University of California, Berkeley, CA 94720, United Statesen
kaust.authorEmwas, Abdul-Hamid M.en
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