Rodyti trumpą aprašą

dc.contributor.authorZhu, Chengjie
dc.contributor.authorPundienė, Ina
dc.contributor.authorPranckevičienė, Jolanta
dc.contributor.authorKligys, Modestas
dc.date.accessioned2023-09-18T16:36:47Z
dc.date.available2023-09-18T16:36:47Z
dc.date.issued2023
dc.identifier.urihttps://etalpykla.vilniustech.lt/handle/123456789/115424
dc.description.abstractBiomass fly ash (BFA), a by-product of wood biomass energy production, is difficult to utilize due to its low inorganic content. This study explored the possibility of using untreated BFA in alkali-activated materials (AAM). The used alkaline activator solution (AAS) is a mixture of Na2CO3 solution and Na2SiO3 solution with less alkalinity. This article systematically examined how the Na2CO3/Na2SiO3 (SC/SS) ratio of the AAS affected the structure formation, product synthesis, and physical-mechanical properties of BFA-based AAM pastes cured at 40 °C. Increasing the SC/SS ratio of the AAS from 0.40 to 1.20 increased the density (28 d, from 1287 to 1359 kg/m3 ) and compressive strength (28 d, from 2.36 to 3.97 MPa) of the AAM samples. The AAM sample with the lowest SC/SS ratio has the longest setting time and the highest water absorption. As the SC/SS ratio rose, gaylussite and C-S-H were synthesized in the samples, contributing to the compressive strength of the AAM pastes with higher SC/SS ratio, according to XRD analyses. The results of this study can help the development of eco-friendly BFA-based AAM.eng
dc.formatPDF
dc.format.extentp. 52
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.rightsLaisvai prieinamas internete
dc.source.urihttps://www.cct2023.chgf.vu.lt/images/2023/CCT_2023_Conference_book.pdf
dc.source.urihttps://www.cct2023.chgf.vu.lt/
dc.source.urihttps://talpykla.elaba.lt/elaba-fedora/objects/elaba:158828153/datastreams/MAIN/content
dc.titleBiomass fly ash-based alkali-activated materials
dc.typeKonferencijos pranešimo santrauka / Conference presentation abstract
dcterms.accessRightsThis is an Open Access article distributed under the terms of the Creative Commons Attribution Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
dcterms.licenseCreative Commons – Attribution – 4.0 International
dcterms.references0
dc.type.pubtypeT2 - Konferencijos pranešimo tezės / Conference presentation abstract
dc.contributor.institutionVilniaus Gedimino technikos universitetas Yancheng Institute of Technology
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatybinių medžiagų institutas / Institute of Building Materials
dc.subject.researchfieldT 008 - Medžiagų inžinerija / Material engineering
dc.subject.studydirectionF03 - Medžiagų technologijos / Materials technology
dc.subject.vgtuprioritizedfieldsSD0202 - Aplinką tausojančios statybinės medžiagos ir technologijos / Low emissions building materials and technologies
dc.subject.ltspecializationsL104 - Nauji gamybos procesai, medžiagos ir technologijos / New production processes, materials and technologies
dc.subject.enbiomass fly ash
dc.subject.enalkali-activated materials
dc.subject.enNa2CO3/Na2SiO3 ratio
dc.subject.enstructure formation
dc.subject.encompressive strength
dcterms.sourcetitleChemistry and chemical technology: international conference CCT-2023, March 10, 2023, Vilnius : conference book
dc.publisher.nameVilnius University Press
dc.publisher.cityVilnius
dc.identifier.doi10.15388/CCT.2023
dc.identifier.elaba158828153


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