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DC Field | Value | Language |
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dc.contributor.author | Garcia, Encarnación | - |
dc.contributor.author | Alfonso Abella, María Pura | - |
dc.contributor.author | Tauler i Ferré, Esperança | - |
dc.date.accessioned | 2021-02-23T14:19:51Z | - |
dc.date.available | 2021-02-23T14:19:51Z | - |
dc.date.issued | 2020-01-29 | - |
dc.identifier.issn | 2075-163X | - |
dc.identifier.uri | http://hdl.handle.net/2445/174178 | - |
dc.description.abstract | The Camarasa Dam was built in 1920 using dolomitic aggregate and Portland cement with two di erent 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 di raction. 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.extent | 13 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | MDPI | - |
dc.relation.isformatof | Reproducció del document publicat a: https://doi.org/10.3390/min10020117 | - |
dc.relation.ispartof | Minerals, 2020, vol. 10, num. 2 | - |
dc.relation.uri | https://doi.org/10.3390/min10020117 | - |
dc.rights | cc-by (c) Garcia, Encarnación et al., 2020 | - |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es | - |
dc.source | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) | - |
dc.subject.classification | Dolomia | - |
dc.subject.classification | Ciment pòrtland | - |
dc.subject.other | Dolomite | - |
dc.subject.other | Portland cement | - |
dc.title | Mineralogical Characterization of Dolomitic Aggregate Concrete: The Camarasa Dam (Catalonia, Spain) | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/publishedVersion | - |
dc.identifier.idgrec | 703871 | - |
dc.date.updated | 2021-02-23T14:19:51Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Mineralogia, Petrologia i Geologia Aplicada) |
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File | Description | Size | Format | |
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703871.pdf | 7.9 MB | Adobe PDF | View/Open |
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