Experimental study of the valorization of sulfate soils for use as construction material
| dc.contributor.author | Seco Meneses, Andrés | |
| dc.contributor.author | Del Castillo García, Jesús María | |
| dc.contributor.author | Perlot, Céline | |
| dc.contributor.author | Marcelino Sádaba, Sara | |
| dc.contributor.author | Prieto Cobo, Eduardo | |
| dc.contributor.author | Espuelas Zuazu, Sandra | |
| dc.contributor.department | Ingeniaritza | eu |
| dc.contributor.department | Institute of Smart Cities - ISC | en |
| dc.contributor.department | Ingeniería | es_ES |
| dc.contributor.funder | Universidad Pública de Navarra / Nafarroako Unibertsitate Publikoa | es |
| dc.date.accessioned | 2023-01-16T13:00:26Z | |
| dc.date.available | 2023-01-16T13:00:26Z | |
| dc.date.issued | 2022 | |
| dc.date.updated | 2023-01-16T12:51:17Z | |
| dc.description.abstract | This article shows an experimental investigation carried out for the stabilization of a sulfate soil. The stabilization was carried out in two phases: the first phase was the consumption of the sulfate present in the soil through its controlled transformation into ettringite. After this, a modified soil with lower maximum density, greater optimum moisture identified via standard proctor (SP) test, no plasticity and improved unconfined compressive strength (UCS) was obtained. In the second phase, the modified soil was stabilized by the use of different additives rich in oxides of calcium or magnesium, combined with by-products or waste materials containing reactive aluminum or silicon oxides. As a result, the mechanical strength of the modified soil was improved. In this phase, a binary binder composed of a magnesium oxide product and ground granulated blast-furnace slags (GGBS) obtained the highest UCS. The binary binder composed of lime and an alumina filler formed ettringite in the treated soil. This experiment allowed for the validation of a two-phase stabilization process and the non-conventional additives used, mainly magnesium oxide and GGBS, even for high-bearing-requirement pavement layers’ construction. | en |
| dc.description.sponsorship | The authors thank the Université de Pau et des Pays de l’Adour and the Universidad Pública de Navarra for making this investigation possible through the Ayudas para la recualificación del sistema universitario español para 2021–2023 de la Universidad Pública de Navarra. | en |
| dc.format.mimetype | application/pdf | en |
| dc.identifier.citation | Seco, A., del Castillo, J. M., Perlot, C., Marcelino-Sádaba, S., Prieto, E., & Espuelas, S. (2022). Experimental Study of the Valorization of Sulfate Soils for Use as Construction Material. Sustainability, 14(11), 6609. https://doi.org/10.3390/su1411660 . | en |
| dc.identifier.doi | 10.3390/su14116609 | |
| dc.identifier.issn | 2071-1050 | |
| dc.identifier.uri | https://academica-e.unavarra.es/handle/2454/44562 | |
| dc.language.iso | eng | en |
| dc.publisher | MDPI | en |
| dc.relation.ispartof | Sustainability 2022, 14, 6609 | en |
| dc.relation.publisherversion | https://doi.org/10.3390/su14116609 | |
| dc.rights | © 2022 by the authors. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license | en |
| dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
| dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
| dc.subject | Civil engineering | en |
| dc.subject | Ettringite | en |
| dc.subject | Pavement material | en |
| dc.subject | Stabilization | en |
| dc.subject | Sulfate soil | en |
| dc.title | Experimental study of the valorization of sulfate soils for use as construction material | en |
| dc.type | info:eu-repo/semantics/article | |
| dc.type.version | info:eu-repo/semantics/publishedVersion | |
| dspace.entity.type | Publication | |
| relation.isAuthorOfPublication | 807a1eed-112c-4863-a031-3c51fba3e496 | |
| relation.isAuthorOfPublication | 61ff406f-5d71-4d68-b942-72896c04beea | |
| relation.isAuthorOfPublication | caaba362-de48-48aa-9467-9005391892c4 | |
| relation.isAuthorOfPublication | 1bf3e571-c6a3-41c3-b3c7-0bf7f564a2d4 | |
| relation.isAuthorOfPublication | dab7db06-f2bd-4b8f-9ff7-b128d6711f10 | |
| relation.isAuthorOfPublication.latestForDiscovery | 807a1eed-112c-4863-a031-3c51fba3e496 |