Influence of mesostasis in volcanic rocks on the alkali-aggregate reaction

Handle URI:
http://hdl.handle.net/10754/598623
Title:
Influence of mesostasis in volcanic rocks on the alkali-aggregate reaction
Authors:
Tiecher, Francieli; Dal Molin, Denise Carpena Coitinho; Gomes, Márcia Elisa Boscato; Hasparyk, Nicole Pagan; Monteiro, Paulo José Meleragno
Abstract:
Mesostasis material present in the interstices of volcanic rocks is the main cause of the alkali-aggregate reaction (AAR) in concretes made with these rock aggregates. Mesostasis often is referred to as volcanic glass, because it has amorphous features when analyzed by optical microscopy. However, this study demonstrates that mesostasis in the interstitials of volcanic rocks most often consists of micro to cryptocrystalline mineral phases of quartz, feldspars, and clays. Mesostasis has been identified as having different characteristics, and, thus, this new characterization calls for a re-evaluation of their influence on the reactivity of the volcanic rocks. The main purpose of this study is to correlate the characteristics of mesostasis with the AAR in mortar bars containing basalts and rhyolites. © 2012 Elsevier Ltd. All rights reserved.
Citation:
Tiecher F, Dal Molin DCC, Gomes MEB, Hasparyk NP, Monteiro PJM (2012) Influence of mesostasis in volcanic rocks on the alkali-aggregate reaction. Cement and Concrete Composites 34: 1130–1140. Available: http://dx.doi.org/10.1016/j.cemconcomp.2012.07.009.
Publisher:
Elsevier BV
Journal:
Cement and Concrete Composites
KAUST Grant Number:
KUS-I1-004021
Issue Date:
Nov-2012
DOI:
10.1016/j.cemconcomp.2012.07.009
Type:
Article
ISSN:
0958-9465
Sponsors:
The authors of this study wish to thank the Centro de Microscopia Eletronica (CME) of Universidade Federal do Rio Grande do Sul (UFRGS), the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) and Furnas Centrais Eletricas S.A/ANEEL for their support to this research.This publication was based on work supported in part by Award No. KUS-I1-004021, made by King Abdullah University of Science and Technology (KAUST).
Appears in Collections:
Publications Acknowledging KAUST Support

Full metadata record

DC FieldValue Language
dc.contributor.authorTiecher, Francielien
dc.contributor.authorDal Molin, Denise Carpena Coitinhoen
dc.contributor.authorGomes, Márcia Elisa Boscatoen
dc.contributor.authorHasparyk, Nicole Paganen
dc.contributor.authorMonteiro, Paulo José Meleragnoen
dc.date.accessioned2016-02-25T13:33:19Zen
dc.date.available2016-02-25T13:33:19Zen
dc.date.issued2012-11en
dc.identifier.citationTiecher F, Dal Molin DCC, Gomes MEB, Hasparyk NP, Monteiro PJM (2012) Influence of mesostasis in volcanic rocks on the alkali-aggregate reaction. Cement and Concrete Composites 34: 1130–1140. Available: http://dx.doi.org/10.1016/j.cemconcomp.2012.07.009.en
dc.identifier.issn0958-9465en
dc.identifier.doi10.1016/j.cemconcomp.2012.07.009en
dc.identifier.urihttp://hdl.handle.net/10754/598623en
dc.description.abstractMesostasis material present in the interstices of volcanic rocks is the main cause of the alkali-aggregate reaction (AAR) in concretes made with these rock aggregates. Mesostasis often is referred to as volcanic glass, because it has amorphous features when analyzed by optical microscopy. However, this study demonstrates that mesostasis in the interstitials of volcanic rocks most often consists of micro to cryptocrystalline mineral phases of quartz, feldspars, and clays. Mesostasis has been identified as having different characteristics, and, thus, this new characterization calls for a re-evaluation of their influence on the reactivity of the volcanic rocks. The main purpose of this study is to correlate the characteristics of mesostasis with the AAR in mortar bars containing basalts and rhyolites. © 2012 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipThe authors of this study wish to thank the Centro de Microscopia Eletronica (CME) of Universidade Federal do Rio Grande do Sul (UFRGS), the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) and Furnas Centrais Eletricas S.A/ANEEL for their support to this research.This publication was based on work supported in part by Award No. KUS-I1-004021, made by King Abdullah University of Science and Technology (KAUST).en
dc.publisherElsevier BVen
dc.subjectBasalten
dc.subjectCrystallinityen
dc.subjectMesostasisen
dc.subjectQuartzen
dc.subjectReactivityen
dc.subjectRhyoliteen
dc.subjectVolcanic rocken
dc.titleInfluence of mesostasis in volcanic rocks on the alkali-aggregate reactionen
dc.typeArticleen
dc.identifier.journalCement and Concrete Compositesen
dc.contributor.institutionUniversidade Federal do Rio Grande do Sul, Porto Alegre, Brazilen
dc.contributor.institutionFurnas Centrais Elétricas, Aparecida de Goiânia/GO, Brazilen
dc.contributor.institutionUC Berkeley, Berkeley, United Statesen
kaust.grant.numberKUS-I1-004021en
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