Durability, life cycle cost and life cycle assessment of binary mixtures with fly ash, rice husk ash and concrete demolition waste

dc.creatorLima, Cristian Jonathan Franco de
dc.creatorRibeiro, Francisco Roger Carneiro
dc.creatorModolo, Regina Célia Espinosa
dc.creatorIsaia, Geraldo Cechella
dc.creatorMancio, Mauricio
dc.date2021-11-01
dc.date.accessioned2022-10-04T22:08:55Z
dc.date.available2022-10-04T22:08:55Z
dc.identifierhttps://seer.ufrgs.br/index.php/ambienteconstruido/article/view/111831
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/3869357
dc.descriptionThis study analyses, by means of lifespan cost and lifespan assessment, the production of binary concrete admixtures compound by artificial pozzolan and concrete demolition waste. Ten formulations were developed, differentiating them in terms of mixtures, binder and aggregate content, in order to verify their potential use in concrete columns. The replacements were 25% of Portland cement for fly ash and rice husk ash, 15% and 30% of natural coarse aggregates for concrete demolition waste. The results revealed that the mixtures with pozzolan and demolition waste showed higher resistance to chloride penetration. The lowest concrete cost was achieved in the highest compressive strength (35 MPa) and the concrete admixture containing 15% replacement of the natural coarse aggregate by the recycled concrete aggregate and 25% substitution of cement by rice husk ash can be classified as the most environmentally sustainable one, especially in carbon dioxide emissions, among the mixtures studied.en-US
dc.languageeng
dc.publisherANTAC - Associação Nacional de Tecnologia do Ambiente Construídopt-BR
dc.relationhttps://seer.ufrgs.br/index.php/ambienteconstruido/article/view/111831/65043
dc.rightsCopyright (c) 2021 Ambiente Construídopt-BR
dc.sourceAmbiente Construído; Vol. 22 No. 1 (2022); 161-177en-US
dc.sourceAmbiente Construído; Vol. 22 Núm. 1 (2022); 161-177es-ES
dc.sourceAmbiente Construído; v. 22 n. 1 (2022); 161-177pt-BR
dc.source1678-8621
dc.source1415-8876
dc.subjectDurability. Life Cycle Cost. Life Cycle Assessment. Binary mixtures of concrete. Artificial pozzolan. Concrete demolition waste.en-US
dc.titleDurability, life cycle cost and life cycle assessment of binary mixtures with fly ash, rice husk ash and concrete demolition wasteen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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