Rodyti trumpą aprašą

dc.contributor.authorVaičienė, Marija
dc.contributor.authorMalaiškienė, Jurgita
dc.contributor.authorMaqbool, Qaisar
dc.date.accessioned2023-12-22T07:07:13Z
dc.date.available2023-12-22T07:07:13Z
dc.date.issued2023
dc.identifier.issn1996-1944
dc.identifier.urihttps://etalpykla.vilniustech.lt/xmlui/handle/123456789/153794
dc.description.abstractWood waste bottom ash (WWBA) is a waste generated in power plants during the burning of forest residues to produce energy and heat. In 2019, approximately 19,800 tons of WWBA was generated only in Lithuania. WWBA is rarely recycled or reused and is mostly landfilled, which is both costly for the industry and unsustainable. This study presents a sustainable solution to replace a part of cement with WWBA at 3%, 6%, 9%, and 12% by weight. Problems are also associated with the use of this material, as WWBA could have a relatively large surface area and a high water demand. For the evaluation of the possibilities of WWBA use for cementitious materials, the calorimetry test for the cement paste as well as X-ray diffraction (XRD), thermography (TG, DTG), and porosity (MIP) for hardened cement paste with the results of physical and mechanical properties, and the freeze–thaw resistance of the concrete was measured and compared. It was found that WWBA with a large quantity of CO2 could be used as a microfiller with weak pozzolanic properties in the manufacture of cementitious materials. As a result, concrete containing 6% WWBA used to substitute cement has higher density, compressive strength at 28 days, and ultrasonic pulse velocity values. In terms of durability, it was verified that concrete modified with 3%, 6%, 9%, and 12% WWBA had a freeze–thaw resistance level of F150. The results show that the use of WWBA to replace cement is a valuable sustainable option for the production of conventional concrete and has a positive effect on durability.eng
dc.formatPDF
dc.format.extentp. 1-16
dc.format.mediumtekstas / txt
dc.language.isoeng
dc.relation.isreferencedbyScience Citation Index Expanded (Web of Science)
dc.relation.isreferencedbyScopus
dc.rightsLaisvai prieinamas internete
dc.source.urihttps://www.mdpi.com/1996-1944/16/19/6498
dc.source.urihttps://talpykla.elaba.lt/elaba-fedora/objects/elaba:178006478/datastreams/MAIN/content
dc.titleThe impact of milled wood waste bottom ash (WWBA) on the properties of conventional concrete and cement hydration
dc.typeStraipsnis Web of Science DB / Article in Web of Science DB
dcterms.licenseCreative Commons – Attribution – 4.0 International
dcterms.references66
dc.type.pubtypeS1 - Straipsnis Web of Science DB / Web of Science DB article
dc.contributor.institutionVilniaus technologijų ir dizaino kolegija
dc.contributor.institutionVilniaus Gedimino technikos universitetas
dc.contributor.institutionUniversità Politecnica delle Marche—INSTM Research Unit
dc.contributor.facultyStatybos fakultetas / Faculty of Civil Engineering
dc.contributor.departmentStatybinių medžiagų institutas / Institute of Building Materials
dc.subject.researchfieldT 002 - Statybos inžinerija / Construction and engineering
dc.subject.researchfieldT 008 - Medžiagų inžinerija / Material engineering
dc.subject.researchfieldT 004 - Aplinkos inžinerija / Environmental engineering
dc.subject.studydirectionE05 - Statybos inžinerija / Civil engineering
dc.subject.enconventional concrete
dc.subject.enmilled wood waste bottom ash
dc.subject.enphysical and mechanical properties
dc.subject.enconcrete durability
dc.subject.enfreeze–thaw resistance
dc.subject.encement hydration
dcterms.sourcetitleMaterials
dc.description.issueiss. 19
dc.description.volumevol.16
dc.publisher.nameMDPI
dc.publisher.cityBasel
dc.identifier.doi001086038600001
dc.identifier.doi10.3390/ma16196498
dc.identifier.elaba178006478


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