Sustainable unfired bricks manufacturing from construction and demolition wastes

dc.contributor.authorSeco Meneses, Andrés
dc.contributor.authorOmer, Joshua
dc.contributor.authorMarcelino Sádaba, Sara
dc.contributor.authorEspuelas Zuazu, Sandra
dc.contributor.authorPrieto Cobo, Eduardo
dc.contributor.departmentProyectos e Ingeniería Rurales_ES
dc.contributor.departmentLanda Ingeniaritza eta Proiektuakeu
dc.date.accessioned2018-12-04T11:57:21Z
dc.date.available2020-02-10T00:00:14Z
dc.date.issued2018
dc.description.abstractThe management of construction and demolition wastes is a huge challenge for most Governments. Thegreatest component of such wastes is concrete and masonry fragments or remains. Among the most com-mon approaches to valorization of such w astes is to convert them to recycled aggregates, however thismay be hampered by low quality of some recycled aggregates compared to natural aggregates. This paperpresents the results of experimental investigation where concrete and ceramic remains were used to par-tially substitute clay soil in producing unfired bricks. The bricks were then tested for mechanical strength,water absorption freeze-thaw resistance. Additionally the environmental impact of the bricks wasassessed based on Life Cycle Analysis (LCA). It was established that concrete waste could be used to sub-stitute up to 50% of the clay whereas ceramic wastes could only substitute a maximum of 30% of the clay.Blended bricks made from clay and concrete waste mixes had a lower mechanical strength than thosemade from clay and ceramic waste. As regards water absorption, there was no marked differencebetween the two blends of brick however reduction in water resistance was slightly greater in bricks con-taining concrete waste that in those containing ceramic wastes. Also, tests showed that freeze-thawresistance was greater in bricks blended with concrete wastes than in those incorporating ceramicwastes. Life Cycle analyses demonstrated that it is the binder content in the mix that largely determinesthe environmental impact of the blended bricks. Lastly, it was demonstrated that the most desirable tech-nical and environmental credentials of brick material mixes resulted from using the binder combination:CL-90-S+GGBS 2/8.en
dc.embargo.lift2020-02-10
dc.embargo.terms2020-02-10
dc.format.mimetypeapplication/pdfen
dc.identifier.doi10.1016/j.conbuildmat.2018.02.026
dc.identifier.issn0950-0618 (Print)
dc.identifier.issn1879-0526 (Electronic)
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/31690
dc.language.isoengen
dc.publisherElsevieren
dc.relation.ispartofConstruction and Building Materials, volume 167, 10 april 2018, pages 154-165en
dc.relation.publisherversionhttps://doi.org/10.1016/j.conbuildmat.2018.02.026
dc.rights© 2018 Elsevier Ltd. All rights reserved.The manuscript version is made available under the CC BY-NC-ND 4.0 licenseen
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectUnfired bricksen
dc.subjectConstruction and demolition wastesen
dc.subjectPozzolanic reactionsen
dc.subjectMechanical propertiesen
dc.subjectDurabilityen
dc.subjectLife cycle analysisen
dc.titleSustainable unfired bricks manufacturing from construction and demolition wastesen
dc.typeinfo:eu-repo/semantics/article
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dspace.entity.typePublication
relation.isAuthorOfPublication807a1eed-112c-4863-a031-3c51fba3e496
relation.isAuthorOfPublicationcaaba362-de48-48aa-9467-9005391892c4
relation.isAuthorOfPublicationdab7db06-f2bd-4b8f-9ff7-b128d6711f10
relation.isAuthorOfPublication1bf3e571-c6a3-41c3-b3c7-0bf7f564a2d4
relation.isAuthorOfPublication.latestForDiscovery807a1eed-112c-4863-a031-3c51fba3e496

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