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dc.contributor.authorDos Rei, Glaydson Simões
dc.contributor.authorCazacliu, Bogdan G.
dc.contributor.authorCothenet, Alexis
dc.contributor.authorPoullain, Philippe
dc.contributor.authorWilhelm, Michaela
dc.contributor.authorHoffmann Sampaio, Carlos
dc.contributor.authorLima, Eder Claudio
dc.contributor.authorAmbrós, Weslei Monteiro
dc.contributor.authorTorrenti, Jean-Michel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC
dc.identifier.citationDos Rei, G. [et al.]. Fabrication, microstructure, and properties of fired clay bricks using construction and demolition waste sludge as the main additive. "Journal of cleaner production", 10 Juny 2020, vol. 258, p. 120733: 1-120733: 14.
dc.description.abstractGreen routes to prepare or manufacture sustainable building materials have been attracting much attention over the years targeting sustainability issues. In this investigation, for the first time, sludge from the inert mineral part of the construction and demolition waste (RA-S) is used as a primary raw material in the fabrication of fired bricks for building purposes. Fired bricks fabricated with different dosages of RA-S and earth material (i.e., 0%, 30%, 50%, 70%, and 100% by weight) were prepared and evaluated in terms of their physical-chemical properties. The RA-S was characterized, and the results showed that it could be classified as a clayey material and richly graded silty sand according to the French Standards. XRD analysis revealed that the addition of the RA sludge into raw earth material provoked changes slightly in the fired bricks. The compressive strength (CS) results indicated that the CS of the fired bricks increased with the addition of the RA-S from 30% to 70%. The highest CS was attained at the firing temperature of 800 °C. The density of the fired brick slightly reduced with the RA-S addition. The thermal conductivity results suggest that RA-S has better insulation properties compared to earth material. The RA-S sludge can be used in combination with earth material to fabricate fired bricks, which can meet the requirements of many Standards all over the World. In the light of these results, it is possible to say that the RA-S generated from recycling inert mineral part of construction and demolition waste plant is an excellent raw material to prepare efficient fired bricks that can be successfully employed in the real construction sector. Also, the highlighted results suggest that brickwork factories have the opportunity to improve production quality while significantly reducing manufacturing time, energy consumption, resource depletion, and environmental impact.
dc.description.sponsorshipThe authors are also grateful to the Council for the Development of Higher Education at Graduate Level, Brazil (CAPES) for the postdoctoral scholarship granted through the National Postdoctoral Program (PNPD). The authors also thank Mr. Ferro, president of Esterel Terassement, for financial support and for providing the RA-S samples. Dr. Simoes dos Reis gives a special thanks to the cooperation opportunity between UFRGS and IFSTTAR through his Post-doctoral studies provided by PNPD. E.C. Lima thanks to Foundation for Research Support of the State of Rio Grande do Sul (FAPERGS), and National Council for Scientific and Technological Development (CNPq, Brazil) for financial support and sponsorship.
dc.rightsAttribution-NonCommercial-NoDerivs 4.0 International
dc.subjectÀrees temàtiques de la UPC::Edificació::Impacte ambiental
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials::Assaig de materials
dc.subject.lcshConcrete -- Recycling
dc.subject.lcshRecycling (Waste, etc.)
dc.subject.lcshConstruction and demolition debris
dc.subject.otherRecycling and valorization
dc.subject.otherConstruction and demolition waste sludge
dc.subject.otherBricks production
dc.subject.otherMechanical properties
dc.subject.otherInsulation properties
dc.titleFabrication, microstructure, and properties of fired clay bricks using construction and demolition waste sludge as the main additive
dc.subject.lemacFormigó -- Reciclatge
dc.subject.lemacReciclatge (Residus, etc.)
dc.subject.lemacEnderrocament -- Residus
dc.subject.lemacMaó refractari
dc.contributor.groupUniversitat Politècnica de Catalunya. GREMS - Grup de Recerca en Mineria Sostenible
dc.description.peerreviewedPeer Reviewed
dc.rights.accessRestricted access - publisher's policy
dc.description.versionPostprint (author's final draft)
local.citation.authorDos Rei, G.; Cazacliu, B.; Cothenet, A.; Poullain, P.; Wilhelm, M.; Hoffmann, C.; Lima, E.; Ambrós, W.; Torrenti, J.
local.citation.publicationNameJournal of cleaner production
local.citation.startingPage120733: 1
local.citation.endingPage120733: 14

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