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Preliminary studies on hydrated cement for its reuse in geopolymers
dc.rights.license | Atribución-NoComercial 4.0 Internacional |
dc.contributor.author | Segura Sierpes, Yasna |
dc.contributor.author | Borrachero Rosado, María Victoria |
dc.contributor.author | Monzó Balbuena, José María |
dc.contributor.author | Payá Bernabeu, Jordi |
dc.date.accessioned | 2019-07-02T18:36:58Z |
dc.date.available | 2019-07-02T18:36:58Z |
dc.date.issued | 2016-03-01 |
dc.identifier.issn | ISSN: 2346-2183 |
dc.identifier.uri | https://repositorio.unal.edu.co/handle/unal/60567 |
dc.description.abstract | The carbonation of hydrated ordinary Portland cement (OPC) allows the transformation of hydrated calcium aluminates and silicates into calcium carbonate and amorphous silica/ alumina. These carbonated materials are appropriate to being used as inorganic precursors for alkaline activation. The use of sodium silicate and hydroxide solutions enables the production of cementitious gels. Two ways of carbonation of hydrated cement were studied: in a dry environment, where relative humidity did not exceed 70% and in an aqueous medium at a temperature of 5 ± 1 ° C. Both materials were micro-structurally characterised and they have been used for the manufacturing of geopolymeric mortars. These mortars reached mechanical strength between 10 and 20 MPa, depending on the activating solution, the water/binder ratio and curing time/temperature. These results show the feasibility of reusing hydrated cement contained in construction and demolition wastes. |
dc.format.mimetype | application/pdf |
dc.language.iso | spa |
dc.publisher | Universidad Nacional de Colombia (Sede Medellín). Facultad de Minas. |
dc.relation | https://revistas.unal.edu.co/index.php/dyna/article/view/54189 |
dc.relation.ispartof | Universidad Nacional de Colombia Revistas electrónicas UN Dyna |
dc.relation.ispartof | Dyna |
dc.rights | Derechos reservados - Universidad Nacional de Colombia |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/4.0/ |
dc.subject.ddc | 62 Ingeniería y operaciones afines / Engineering |
dc.title | Preliminary studies on hydrated cement for its reuse in geopolymers |
dc.type | Artículo de revista |
dc.type.driver | info:eu-repo/semantics/article |
dc.type.version | info:eu-repo/semantics/publishedVersion |
dc.identifier.eprints | http://bdigital.unal.edu.co/58899/ |
dc.relation.references | Segura Sierpes, Yasna and Borrachero Rosado, María Victoria and Monzó Balbuena, José María and Payá Bernabeu, Jordi (2016) Preliminary studies on hydrated cement for its reuse in geopolymers. DYNA, 83 (196). pp. 229-238. ISSN 2346-2183 |
dc.rights.accessrights | info:eu-repo/semantics/openAccess |
dc.subject.proposal | Alkali activation |
dc.subject.proposal | carbonation |
dc.subject.proposal | geopolymer |
dc.subject.proposal | hydrated cement |
dc.subject.proposal | mechanical strength |
dc.subject.proposal | microstructure |
dc.subject.proposal | waste. |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 |
dc.type.coarversion | http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.content | Text |
dc.type.redcol | http://purl.org/redcol/resource_type/ART |
oaire.accessrights | http://purl.org/coar/access_right/c_abf2 |
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