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Please use this identifier to cite or link to this item: http://repositorio.lnec.pt:8080/jspui/handle/123456789/1003528
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dc.contributor.authorRamos, V.pt_BR
dc.contributor.authorFernandes, I.pt_BR
dc.contributor.authorSantos Silva, A.pt_BR
dc.contributor.authorSoares, D.pt_BR
dc.contributor.authorNoronha, F.pt_BR
dc.date.accessioned2012-06-11T10:56:55Zpt_BR
dc.date.accessioned2014-10-20T16:32:35Zpt_BR
dc.date.accessioned2017-04-13T10:00:15Z-
dc.date.available2012-06-11T10:56:55Zpt_BR
dc.date.available2014-10-20T16:32:35Zpt_BR
dc.date.available2017-04-13T10:00:15Z-
dc.date.issued2012-05pt_BR
dc.identifier.citationProceedings of the 14th International Conference on Alkali Aggregate Reactionpt_BR
dc.identifier.urihttps://repositorio.lnec.pt/jspui/handle/123456789/1003528-
dc.description.abstractA large number of Portuguese concrete structures were built in the 1960-70’s with granitic aggregates, one of the main rock types used in the construction industry. Some of the structures have recently started to exhibit signs of deterioration due to alkali-silica reactions. It has been verified that the classification of granitic aggregates according to the national standards regarding the petrographic analysis and also to the ultra-accelerated mortar-bar test (ASTM 1260 or RILEM AAR-2) does not always agree with the performance of this type of aggregates in other laboratory tests and in field structures. A comparison of the results obtained for the first three samples of granitic aggregates according the different methods is presented. An attempt is made to point out the main advantages and limitations of each test method in what concerns granitic rocks.pt_BR
dc.description.sponsorshipThe authors are thankful to Fundação para a Ciência e Tecnologia (FCT) for the financial support concerning the Project IMPROVE (Ref: PTDC/ECM/115486/2009). The author V. Ramos is grateful to FCT towards the financial support of her PhD studies (Ref: SFRH/BD/47893/2008).pt_BR
dc.language.isoengpt_BR
dc.rightsopenAccesspt_BR
dc.subjectAsrpt_BR
dc.subjectStrained quartzpt_BR
dc.subjectPetrographypt_BR
dc.subjectExpansion testspt_BR
dc.titlePetrographic characterization vs. Laboratory test methods applied to granitic aggregatespt_BR
dc.typeconferenceObjectpt_BR
dc.identifier.localedicaoAustinpt_BR
dc.description.figures2pt_BR
dc.description.tables1pt_BR
dc.description.pages10ppt_BR
dc.identifier.seminario14th International Conference on Alkali-Aggregate Reactionpt_BR
dc.identifier.localAustin, Texas, USApt_BR
dc.description.sectorDM/NMMpt_BR
dc.identifier.proc0204/14/17905pt_BR
dc.identifier.proc0202/11/17679pt_BR
dc.description.year2012pt_BR
dc.description.data20 a 25 de maiopt_BR
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