Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)(2) pastes
dc.contributor.author | Nakanishi, Erika Y. | |
dc.contributor.author | Frias, Moises | |
dc.contributor.author | Martinez-Ramirez, Sagrario | |
dc.contributor.author | Santos, Sergio F. [UNESP] | |
dc.contributor.author | Rodrigues, Michelle S. | |
dc.contributor.author | Rodriguez, Olga | |
dc.contributor.author | Savastano, Holmer | |
dc.contributor.institution | Universidade de São Paulo (USP) | |
dc.contributor.institution | Eduardo Torroja Inst IETcc CSIC | |
dc.contributor.institution | Matter Struct Inst IEM CSIC | |
dc.contributor.institution | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2015-03-18T15:53:24Z | |
dc.date.available | 2015-03-18T15:53:24Z | |
dc.date.issued | 2014-12-30 | |
dc.description.abstract | This work presents the behavior of two elephant grass ashes, as pozzolans, elephant grass cameroon (EGC) and napier (EGN), calcined under controlled conditions (700 degrees C). The ashes were initially submitted to a chemical treatment with HCI in order to reduce the potassium content. Both ashes showed high pozzolanic activity after 7 days of curing, with at least 85% of fixed lime. The thermogravimetric and micro-Raman analysis in elephant grass ashes/Ca(OH)(2) pastes confirmed that the main hydrated phases during the pozzolanic reaction consisted of CSH gels, by the weight loss between 60 and 300 degrees C in TG analysis and the band at 680 cm(-1) in Raman spectrums. Based on the achieved results, it is possible to conclude that elephant grass ashes can be used as supplementary cementing materials. (C) 2014 Elsevier Ltd. All rights reserved. | en |
dc.description.affiliation | Univ Sao Paulo, Fac Anim Sci & Food Engn, BR-13635900 Pirassununga, SP, Brazil | |
dc.description.affiliation | Eduardo Torroja Inst IETcc CSIC, Madrid 28033, Spain | |
dc.description.affiliation | Matter Struct Inst IEM CSIC, Madrid 28006, Spain | |
dc.description.affiliation | Sao Paulo State Univ, Fac Engn, Dept Mat & Technol, Guaratingueta, SP, Brazil | |
dc.description.affiliationUnesp | Sao Paulo State Univ, Fac Engn, Dept Mat & Technol, Guaratingueta, SP, Brazil | |
dc.description.sponsorship | Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) | |
dc.description.sponsorship | Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) | |
dc.description.sponsorshipId | FAPESP: 11/16842-5 | |
dc.description.sponsorshipId | FAPESP: 10/16524-0 | |
dc.description.sponsorshipId | FAPESP: 09/17293-5 | |
dc.description.sponsorshipId | FAPESP: 13/50790-8 | |
dc.description.sponsorshipId | CNPq: 306386/2013-5 | |
dc.format.extent | 391-398 | |
dc.identifier | http://dx.doi.org/10.1016/j.conbuildmat.2014.09.078 | |
dc.identifier.citation | Construction And Building Materials. Oxford: Elsevier Sci Ltd, v. 73, p. 391-398, 2014. | |
dc.identifier.doi | 10.1016/j.conbuildmat.2014.09.078 | |
dc.identifier.issn | 0950-0618 | |
dc.identifier.orcid | 0000-0003-3384-0754 | |
dc.identifier.uri | http://hdl.handle.net/11449/116490 | |
dc.identifier.wos | WOS:000345806100045 | |
dc.language.iso | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation.ispartof | Construction And Building Materials | |
dc.relation.ispartofjcr | 3.485 | |
dc.relation.ispartofsjr | 1,607 | |
dc.rights.accessRights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | Agro-industrial waste | en |
dc.subject | Elephant grass | en |
dc.subject | Thermal activation | en |
dc.subject | Pozzolan | en |
dc.subject | Lime pastes | en |
dc.subject | Alternative binder | en |
dc.title | Characterization and properties of elephant grass ashes as supplementary cementing material in pozzolan/Ca(OH)(2) pastes | en |
dc.type | Artigo | |
dcterms.license | http://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy | |
dcterms.rightsHolder | Elsevier B.V. | |
dspace.entity.type | Publication | |
unesp.author.orcid | 0000-0003-3384-0754[4] | |
unesp.campus | Universidade Estadual Paulista (UNESP), Faculdade de Engenharia, Guaratinguetá | pt |
unesp.department | Materiais e Tecnologia - FEG | pt |