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dc.contributor.authorGarcía Vílchez, Encarnación
dc.contributor.authorAlfonso Abella, María Pura
dc.contributor.authorTauler Ferré, Esperança
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Electrònica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC
dc.coverage.spatialeast=0.8567905000000001; north=41.9350644; name=LV-9043, 6, 25612, Lleida, Espanya
dc.date.accessioned2020-03-06T08:38:06Z
dc.date.available2020-03-06T08:38:06Z
dc.date.issued2020
dc.identifier.citationGarcia, E.; Alfonso, P.; Tauler, E. Mineralogical characterization of dolomitic aggregate concrete: the Camarasa Dam (Catalonia, Spain). "Minerals", 2020, vol. 10, núm. 117, p. 1-13.
dc.identifier.issn2075-163X
dc.identifier.urihttp://hdl.handle.net/2117/179327
dc.description.abstractThe Camarasa Dam was built in 1920 using dolomitic aggregate and Portland cement with two different compositions: type A (dolomite and Portland cement) and type B (dolomite and sand-cement). The sand cement was a finely powdered mixture of dolomite particles and clinker of Portland cement. The mineralogy of concrete was studied by optical microscopy, scanning electron microscopy, and x-ray powder diffraction. Reaction of dedolomitization occurred in the two types of concrete of the Camarasa Dam, as demonstrated by the occurrence of calcite, brucite, and/or absence of portlandite. In the type A concrete, calcite, brucite, and a serpentine-group mineral precipitated as a rim around the dolomite grains and in the paste. The rims, a product of the dedolomitization reaction, protected the surface of dolomite from the dissolution process. In type B concrete, in addition to dolomite and calcite, quartz and K-feldspar were present. Brucite occurred in lower amounts than in the type A concrete as fibrous crystals randomly distributed in the sand-cement paste. Although brucite content was higher in the type A concrete, type B showed more signs of loss of durability. This can be attributed to the further development of the alkali-silica reaction in this concrete type.
dc.format.extent13 p.
dc.language.isoeng
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Spain
dc.rightsCC BY 4.0
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subjectÀrees temàtiques de la UPC::Enginyeria dels materials
dc.subject.lcshMineralogy
dc.subject.lcshConcrete
dc.subject.otherDolomite
dc.subject.otherSand-cement
dc.subject.otherConcrete
dc.subject.otherDedolomitization reaction
dc.titleMineralogical characterization of dolomitic aggregate concrete: the Camarasa Dam (Catalonia, Spain)
dc.typeArticle
dc.subject.lemacMineralogia
dc.subject.lemacFormigó
dc.identifier.doi10.3390/min10020117
dc.description.peerreviewedPeer Reviewed
dc.relation.publisherversionhttps://www.mdpi.com/2075-163X/10/2/117
dc.rights.accessOpen Access
local.identifier.drac26806059
dc.description.versionPostprint (published version)
local.citation.authorGarcia, E.; Alfonso, P.; Tauler, E.
local.citation.publicationNameMinerals
local.citation.volume10
local.citation.number117
local.citation.startingPage1
local.citation.endingPage13


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Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain