Investigations on the pozzolanic effect of sugar cane bagasse ashes used in cementitious composites

Página do item simplificado
dc.creatorPaula Gisele Lamezon de Pádua
dc.creatorTúlio Panzera
dc.creatorRoberto B. Figueiredo
dc.creatorA. M. Gomes
dc.creatorMaria Teresa Paulino Aguilar
dc.date.accessioned2023-07-28T20:02:37Z
dc.date.accessioned2025-09-09T00:00:38Z
dc.date.available2023-07-28T20:02:37Z
dc.date.issued2016
dc.identifier.doi10.2174/1874836801610010395
dc.identifier.issn1874-8368
dc.identifier.urihttps://hdl.handle.net/1843/57174
dc.languagepor
dc.publisherUniversidade Federal de Minas Gerais
dc.relation.ispartofThe open construction and building technology journal
dc.rightsAcesso Aberto
dc.subjectFourier, Espectroscopia de infravermelho por transformada de
dc.subjectFísico-química
dc.subject.otherCementitious composites
dc.subject.otherDifferential scanning calorimetry (DSC)
dc.subject.otherFourier transform infrared spectroscopy (FTIR)
dc.subject.otherModified chapelle
dc.subject.otherPhysical-chemical characteristic
dc.subject.otherPozzolanic activity
dc.subject.otherSugar cane bagasse ash
dc.titleInvestigations on the pozzolanic effect of sugar cane bagasse ashes used in cementitious composites
dc.typeArtigo de periódico
local.citation.epage405
local.citation.issue3
local.citation.spage395
local.citation.volume10
local.description.resumoBrazil is a major producer of alcohol from sugar cane, a fuel with low environmental impact. The production of alcohol generates a large amount of bagasse, the biggest waste of Brazilian agriculture. This bagasse is usually burned for energy production providing nearly 3% of residual ashes. The potential use of these ashes like mineral admixture of cementitious composites depends on calcination conditions. The present work identifies the physical and chemical characteristics of ashes from the furnace exhauster, obtained in an industry located at southeast region of Brazil. The ashes were obtained from bagasse of sugar cane harvest in two different seasons. Chemical composition analysis, X-ray diffraction, grain size distribution, loss on ignition, thermogravimetry analysis (TGA), differential scanning calorimetry (DSC), specific surface measurements (BET) and Fourier transform infrared spectroscopy (FTIR) tests were used to characterize the ashes. The pozzolanic activity was estimated by pozzolanic activity index tests with cement and lime, by the modified Chapelle test, electrical conductivity in lime solution tests, TGA and FTIR. The ashes presented different chemical compositions and degree of amorphicity. The ashes with a higher content of silica, the lower organic material content and high degree of crystallinity (1st harvest), for the same size, have higher pozzolanic on electrical conductivity in lime solution tests than the ashes with lower silica content and higher amorphicity (2nd harvest). However, the results of differential scanning calorimetry (DSC) and modified Chapelle method would indicate the pozzolanicity of the ashes of the 2nd harvest. The results of pozzolanic activity index (with cement or lime) indicated the ashes were not pozzolanic.
local.identifier.orcidhttps://orcid.org/0000-0002-8153-0462
local.identifier.orcidhttps://orcid.org/0000-0001-7091-456X
local.identifier.orcidhttp://orcid.org/0000-0002-0121-0881
local.publisher.countryBrasil
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA MATERIAIS E DA CONSTRUÇÃO CIVIL
local.publisher.departmentENG - DEPARTAMENTO DE ENGENHARIA METALÚRGICA
local.publisher.initialsUFMG
local.url.externahttps://openconstructionbuildingtechnologyjournal.com/VOLUME/10/PAGE/395/FULLTEXT/

Arquivos

Pacote original

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
Investigations on the Pozzolanic Effect of Sugar Cane Bagasse Ashes Used in Cementitious Composites.pdf
Tamanho:
678.79 KB
Formato:
Adobe Portable Document Format
Baixar

Licença do pacote

Agora exibindo 1 - 1 de 1
Imagem de Miniatura
Nome:
License.txt
Tamanho:
1.99 KB
Formato:
Plain Text
Descrição:
Baixar

Coleções

Artigo de Periódico

Logo UFMG