Publicación:
Analysis of the production conditions of geopolymer matrices from natural pozzolana and fired clay brick wastes

dc.contributor.author Silva G. es_PE
dc.contributor.author Castañeda D. es_PE
dc.contributor.author Kim S. es_PE
dc.contributor.author Castañeda A. es_PE
dc.contributor.author Bertolotti B. es_PE
dc.contributor.author Ortega-San-Martin L. es_PE
dc.contributor.author Nakamatsu J. es_PE
dc.contributor.author Aguilar R. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2019
dc.description.abstract The improvement of the mechanical properties of geopolymer matrices relies on the characteristics of the source materials as well as in proper optimization of the alkaline activating solution and curing conditions during geopolimerization. This study presents the optimization analyses carried out to determine the proper production conditions of Fired Clay Brick (FCB) and Natural Pozzolana (NP)-based geopolymers. The results indicate that high compressive strengths of up to 37 MPa and 26 MPa can be obtained for FCB and NP-based geopolymers, respectively when the proper production conditions are employed. The optimum alkaline solution for FCB consisted of Ms = 0.60, Na2O content of 8%, water/binder ratio = 0.27 with oven curing conditions between 65 and 80 °C for 7 days. On the other hand, NP-based geopolymers with the highest mechanical properties were obtained with an alkaline solution composed of a Ms = 1.08, 8% Na2O content and 0.52 of water/binder ratio cured in an oven at 65 °C for 7 days. The methodology for the optimization of production conditions of geopolymer matrices validated in this study demonstrated to provide consistent results and, therefore, could be applied for the analysis of the production process of geopolymers based on other aluminosilicate sources
dc.description.sponsorship Fondo Nacional de Desarrollo Científico y Tecnológico - Fondecyt
dc.identifier.doi https://doi.org/10.1016/j.conbuildmat.2019.04.247
dc.identifier.scopus 2-s2.0-85064910744
dc.identifier.uri https://hdl.handle.net/20.500.12390/514
dc.language.iso eng
dc.publisher Elsevier Ltd
dc.relation.ispartof Construction and Building Materials
dc.rights info:eu-repo/semantics/openAccess
dc.subject Water content
dc.subject Brick es_PE
dc.subject Compressive strength es_PE
dc.subject Curing es_PE
dc.subject Geopolymers es_PE
dc.subject Inorganic polymers es_PE
dc.subject Mechanical properties es_PE
dc.subject Ovens es_PE
dc.subject Silica es_PE
dc.subject Activating solutions es_PE
dc.subject Alkaline solutions es_PE
dc.subject Curing condition es_PE
dc.subject Fired clay bricks es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.05.04
dc.title Analysis of the production conditions of geopolymer matrices from natural pozzolana and fired clay brick wastes
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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