Evaluation of Pozzolanic Reactivity of Artificial Pozzolans

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dc.contributor.author	Pontes, J.	pt_BR
dc.contributor.author	Santos Silva, A.	pt_BR
dc.contributor.author	Faria Rodrigues, P.	pt_BR
dc.date.accessioned	2013-08-21T14:59:05Z	pt_BR
dc.date.accessioned	2014-10-20T16:31:37Z	pt_BR
dc.date.accessioned	2017-04-13T11:11:14Z
dc.date.available	2013-08-21T14:59:05Z	pt_BR
dc.date.available	2014-10-20T16:31:37Z	pt_BR
dc.date.available	2017-04-13T11:11:14Z
dc.date.issued	2013	pt_BR
dc.identifier.other	doi:10.4028/www.scientific.net/MSF.730-732.433	pt_BR
dc.identifier.uri	https://repositorio.lnec.pt/jspui/handle/123456789/1005106
dc.description.abstract	Pozzolanicity is a very interesting issue regarding building materials, as a way to enhance mortars and concrete durability. This property results from the reaction between calcium hydroxide and silica and alumina based materials. Different types of natural and artificial pozzolans show pozzolanic activities that differ depending on the materials characteristics. Therefore, the study of this property, namely its reactivity with calcium hydroxide, reveals itself to be important in the selection of the type and content of these materials. This paper presents the results of several pozzolanic reactivity methods, applied to different pozzolanic materials. The selected pozzolanic methods include Chapelle method, Fratinni method and Strength Activity Index. Those tests have been applied to evaluate the reactivity of various kinds of artificial pozzolans. The correlation between the test methods are presented and discussed.	pt_BR
dc.description.sponsorship	The authors wish to acknowledge the Fundação para a Ciência e Tecnologia (FCT) for the financial support under project METACAL (PTDC/ECM/100431/2008) and to the enterprises Fradical, Portucel and IMERYS for the supply of pozzolans used in this work. The authors wish also to aknowledge the institutions of LNEC – Laboratório Nacional de Engenharia Civil and FCT–UNL – Faculdade de Ciências e Tecnologia – Universidade Nova de Lisboa for the technical support and facilities admission in order to perform the tests.	pt_BR
dc.language.iso	eng	pt_BR
dc.publisher	Trans Tech Publications	pt_BR
dc.rights	openAccess	pt_BR
dc.subject	Pozzolan	pt_BR
dc.subject	Reactivity	pt_BR
dc.subject	Chapelle	pt_BR
dc.subject	Fratinni	pt_BR
dc.subject	Strenght activity index	pt_BR
dc.subject	Fly ash	pt_BR
dc.subject	Metakaolin	pt_BR
dc.title	Evaluation of Pozzolanic Reactivity of Artificial Pozzolans	pt_BR
dc.type	article	pt_BR
dc.identifier.localedicao	Switzerland	pt_BR
dc.description.figures	6	pt_BR
dc.description.tables	1	pt_BR
dc.description.pages	433-438pp	pt_BR
dc.description.volume	Vols. 730-732	pt_BR
dc.description.sector	DM/NMM	pt_BR
dc.identifier.proc	0204/11/17692	pt_BR
dc.identifier.proc	0202/11/17679	pt_BR
dc.identifier.proc	0803/14/17356	pt_BR
dc.identifier.proc	0204/533/798	pt_BR
dc.description.magazine	Materials Science Forum	pt_BR