dc.contributor.author |
Istuque, D.B.
|
es_ES |
dc.contributor.author |
Soriano Martinez, Lourdes
|
es_ES |
dc.contributor.author |
Akasaki, J.L.
|
es_ES |
dc.contributor.author |
Melges, J.L.P.
|
es_ES |
dc.contributor.author |
Borrachero Rosado, María Victoria
|
es_ES |
dc.contributor.author |
Monzó Balbuena, José Mª
|
es_ES |
dc.contributor.author |
Paya Bernabeu, Jorge Juan
|
es_ES |
dc.contributor.author |
Tashima, M.M.
|
es_ES |
dc.date.accessioned |
2020-06-05T03:32:30Z |
|
dc.date.available |
2020-06-05T03:32:30Z |
|
dc.date.issued |
2019-04-10 |
es_ES |
dc.identifier.issn |
0950-0618 |
es_ES |
dc.identifier.uri |
http://hdl.handle.net/10251/145402 |
|
dc.description.abstract |
[EN] This paper explored the effect of sewage sludge ash (SSA) on the mechanical and microstructural properties of geopolymers based on metakaolin (MK) involving two different SiO2/Na2O molar ratios (0.8 and 1.6), two temperature curing conditions (25 degrees C and 65 degrees C) and various ages of curing (1, 3, 7, 14, 28, 90 or 180 days). The geopolymers were characterized using different techniques as X-ray diffraction (XRD), thermogravimetric analysis (TGA), Fourier transform infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and compressive strength of mortars. The compressive strength tests showed that the replacement of MK by SSA in 10 wt% when cured at 25 degrees C with the highest SiO2/Na2O molar ratio reaches similar compressive strengths after 14 days of curing compared to the samples with only MK, which reached a maximum compressive strength of 50.8 MPa at 180 days. The FTIR analyses carried out in the geopolymer pastes with SSA (10 wt% of SSA and 90 wt% of MK) showed a formation of N-A-S-H gels in the samples cured at 25 degrees C. The microstructural studies by XRD, TGA and SEM pointed out the formation of a crystalline phase as Na P-type zeolite in MK/SSA based-geopolymer pastes cured at 65 degrees C, which explained the loss of compressive strength of the samples cured at high temperature. However, the SSA retarded the crystallization process in the MK based-geopolymer. (C) 2019 Elsevier Ltd. All rights reserved. |
es_ES |
dc.description.sponsorship |
This research has been supported by funding agency Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (processo n° 309015/2015-4). |
es_ES |
dc.language |
Inglés |
es_ES |
dc.publisher |
Elsevier |
es_ES |
dc.relation.ispartof |
Construction and Building Materials |
es_ES |
dc.rights |
Reserva de todos los derechos |
es_ES |
dc.subject |
Geopolymer |
es_ES |
dc.subject |
Alkali-activated cement |
es_ES |
dc.subject |
Sewage sludge ash |
es_ES |
dc.subject |
Waste management |
es_ES |
dc.subject.classification |
INGENIERIA DE LA CONSTRUCCION |
es_ES |
dc.title |
Effect of sewage sludge ash on mechanical and microstructural properties of geopolymers based on metakaolin |
es_ES |
dc.type |
Artículo |
es_ES |
dc.identifier.doi |
10.1016/j.conbuildmat.2019.01.093 |
es_ES |
dc.relation.projectID |
info:eu-repo/grantAgreement/CNPq//309015%2F2015-4/ |
es_ES |
dc.relation.projectID |
info:eu-repo/grantAgreement/MINECO//BIA2015-70107-R/ES/APLICACIONES DE SISTEMAS GEOPOLIMERICOS OBTENIDOS A PARTIR DE MEZCLAS DE RESIDUOS: MORTEROS,HORMIGONES Y ESTABILIZACION DE SUELOS/ |
es_ES |
dc.rights.accessRights |
Abierto |
es_ES |
dc.contributor.affiliation |
Universitat Politècnica de València. Instituto de Ciencia y Tecnología del Hormigón - Institut de Ciència i Tecnologia del Formigó |
es_ES |
dc.contributor.affiliation |
Universitat Politècnica de València. Departamento de Ingeniería de la Construcción y de Proyectos de Ingeniería Civil - Departament d'Enginyeria de la Construcció i de Projectes d'Enginyeria Civil |
es_ES |
dc.description.bibliographicCitation |
Istuque, D.; Soriano Martinez, L.; Akasaki, J.; Melges, J.; Borrachero Rosado, MV.; Monzó Balbuena, JM.; Paya Bernabeu, JJ.... (2019). Effect of sewage sludge ash on mechanical and microstructural properties of geopolymers based on metakaolin. Construction and Building Materials. 203:95-103. https://doi.org/10.1016/j.conbuildmat.2019.01.093 |
es_ES |
dc.description.accrualMethod |
S |
es_ES |
dc.relation.publisherversion |
https://doi.org/10.1016/j.conbuildmat.2019.01.093 |
es_ES |
dc.description.upvformatpinicio |
95 |
es_ES |
dc.description.upvformatpfin |
103 |
es_ES |
dc.type.version |
info:eu-repo/semantics/publishedVersion |
es_ES |
dc.description.volume |
203 |
es_ES |
dc.relation.pasarela |
S\381288 |
es_ES |
dc.contributor.funder |
Coordenaçao de Aperfeiçoamento de Pessoal de Nível Superior, Brasil |
es_ES |
dc.contributor.funder |
Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brasil |
es_ES |
dc.contributor.funder |
Ministerio de Economía y Competitividad |
es_ES |