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dc.contributor.author | Moraes, J.C.B | es_ES |
dc.contributor.author | Moraes, M.J.B. | es_ES |
dc.contributor.author | Batista, J.P.B. | es_ES |
dc.contributor.author | Akasaki, J.L. | es_ES |
dc.contributor.author | Font, A. | es_ES |
dc.contributor.author | Tashima, M.M. | es_ES |
dc.contributor.author | Soriano Martinez, Lourdes | es_ES |
dc.contributor.author | Borrachero Rosado, María Victoria | es_ES |
dc.contributor.author | Payá, J. | es_ES |
dc.date.accessioned | 2024-10-03T18:25:03Z | |
dc.date.available | 2024-10-03T18:25:03Z | |
dc.date.issued | 2024-09-20 | es_ES |
dc.identifier.issn | 0950-0618 | es_ES |
dc.identifier.uri | http://hdl.handle.net/10251/209247 | |
dc.description.abstract | [EN] The present investigation studied the use of agro-industrial waste, sugar cane straw ash (SCSA), to partially replace commercial metakaolin (MK) in geopolymers (0 %, 15 %, 30 %, and 45 % percentages of substitution by mass). The study presented solid precursors characterization, microstructural studies of pastes, and compressive strength of mortars assessed between 1 and 90 days of curing at 25 degrees C. The chemical composition of MK was mainly based on SiO2 2 (54.1 wt%) and Al2O3 2 O 3 (35.9 wt%), and SCSA was mainly composed of SiO2 2 (58.6 wt%). Microstructural studies of pastes showed that occurred a formation of N-A-S-H amorphous reaction products and no crystalline phases were formed; SCSA contributed to the formation of geopolymer reaction products as a secondary role to the main reaction of MK; the presence of SCSA slightly increased the porosity and did not excessively modify the pore distribution; and the pastes with SCSA presented a heterogeneous microstructure. The compressive strength of mortars reached values over 50 MPa after 90 days of curing. Therefore, SCSA was a sustainable replacement for MK in producing geopolymers. | es_ES |
dc.description.sponsorship | This work was supported by the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [grant number 153164/2016-6] for scholarship to J.C.B. Moraes; Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq) [grant number 401724/2013-1] ; and the "Ministerio de Educacion, Cultura y Deporte" of Spain ("Cooperacion Interuniversitaria" program with Brazil) [grant number PHB-2011-0016-PC] . Finally, M.M. Tashima wishes to thank the Spanish Ministry of Universities and the Universitat Politecnica de Valencia for the grant "Maria Zambrano for attraction of international talent", funded by European Union-Next Generation. | 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 | Materials characterization | es_ES |
dc.subject | Microstructure | es_ES |
dc.subject | Compressive strength | es_ES |
dc.subject | Agro-industrial waste | es_ES |
dc.subject.classification | INGENIERIA DE LA CONSTRUCCION | es_ES |
dc.title | Influence of sugar cane straw ash in metakaolin-based geopolymers | es_ES |
dc.type | Artículo | es_ES |
dc.identifier.doi | 10.1016/j.conbuildmat.2024.137835 | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/CNPq//401724%2F2013-1/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/CNPq//153164%2F2016-6/ | es_ES |
dc.relation.projectID | info:eu-repo/grantAgreement/MECD//PHB-2011-0016-PC//Nuevos conglomerantes basados en la activación alcalina de cenizas de bagazo y de hoja de caña de azúcar/ | es_ES |
dc.rights.accessRights | Cerrado | es_ES |
dc.contributor.affiliation | Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros de Caminos, Canales y Puertos - Escola Tècnica Superior d'Enginyers de Camins, Canals i Ports | es_ES |
dc.description.bibliographicCitation | Moraes, J.; Moraes, M.; Batista, J.; Akasaki, J.; Font, A.; Tashima, M.; Soriano Martinez, L.... (2024). Influence of sugar cane straw ash in metakaolin-based geopolymers. Construction and Building Materials. 444. https://doi.org/10.1016/j.conbuildmat.2024.137835 | es_ES |
dc.description.accrualMethod | S | es_ES |
dc.relation.publisherversion | https://doi.org/10.1016/j.conbuildmat.2024.137835 | es_ES |
dc.type.version | info:eu-repo/semantics/publishedVersion | es_ES |
dc.description.volume | 444 | es_ES |
dc.relation.pasarela | S\525632 | es_ES |
dc.contributor.funder | European Commission | es_ES |
dc.contributor.funder | Ministerio de Universidades | es_ES |
dc.contributor.funder | Universitat Politècnica de València | es_ES |
dc.contributor.funder | Ministerio de Educación, Cultura y Deporte | es_ES |
dc.contributor.funder | Conselho Nacional de Desenvolvimento Científico e Tecnológico, Brasil | es_ES |